iamchum/robs.kitchen_recipe_dataset huggingface dataset:
Roasted-Garlic Asparagus

Ingredients:
1/2 cup extra-virgin olive oil, 8 cloves fresh garlic, minced, 1 teaspoon onion powder, 2 tablespoons fresh finely chopped parsley, 2 pounds thin asparagus, ends trimmed, Fleur de sel or coarse sea salt, Freshly ground black pepper

Instructions:
Preheat oven to 400°F.
Line a large jelly-roll pan with parchment paper. Set aside.
In a small pot, heat the oil, garlic, onion powder, and parsley on medium-low heat. Cook for 3 minutes, until the garlic mixture is fragrant but not browned.
Spread the asparagus in a single layer on the prepared pan. Lightly sprinkle with coarse sea salt and freshly ground pepper. Drizzle on the garlic-oil mixture.
Roast for 8-10 minutes, until the asparagus are bright green; do not overcook.
Transfer to a platter and serve hot.
Tricolor Matzo Ball Soup

Ingredients:
Spinach Matzo Balls, Tomato Matzo Balls, Turmeric Matzo Balls

Instructions:
Prepare Spinach Matzo Balls , Tomato Matzo Balls , and Turmeric Matzo Balls . Include one of each flavor of matzo ball per serving.
Classic Coconut Cake

Ingredients:
Nonstick vegetable oil spray
2 cups all purpose flour
1 1/3 cups (loosely packed) sweetened flaked coconut
1 cup buttermilk
1 teaspoon baking soda
2 cups sugar
1 cup (2 sticks) unsalted butter, room temperature
5 large egg yolks
4 large egg whites, room temperature
3 1/3 cups powdered sugar
1 8-ounce package philadelphia-brand cream cheese, room temperature
1/2 cup (1 stick) unsalted butter, room temperature
2 teaspoons vanilla extract
1 cup (about) sweetened flaked coconut

Instructions:
Preheat oven to 350°F. Coat two 9-inch-diameter cake pans with 1 1/2-inch-high sides with nonstick spray; line bottom of pans with parchment paper rounds.
Mix flour and coconut in medium bowl. Whisk buttermilk and baking soda in small bowl. Using electric mixer, beat sugar and butter in large bowl until light and fluffy, about 2 minutes. Add egg yolks and beat to blend. Add flour mixture in 3 additions alternately with buttermilk mixture in 2 additions, beating just to blend after each addition. Using clean dry beaters, beat egg whites and 1/4 teaspoon salt in another large bowl until peaks form. Add 1/3 of egg white mixture to batter; fold into batter just to blend. Fold in remaining egg white mixture in 2 additions. Divide batter between pans.
Bake cakes until tester inserted into center comes out clean, about 35 minutes. Cool cakes in pans on racks 10 minutes. Run small sharp knife around sides of cake pans. Invert cakes onto racks. Carefully peel off parchment. Cool cakes completely.
Using electric mixer, beat sugar, cream cheese, butter, and vanilla in large bowl until blended. Place 1 cake layer, flat side up, on plate. Spread with 1 cup frosting. Place second layer, flat side up, atop frosting. Spread remaining frosting over top and sides of cake. Sprinkle some of coconut over top of cake; pat more coconut on sides of cake. DO AHEAD: can be made 1 day ahead. Cover with cake dome and refrigerate. Let stand at room temperature 1 hour before serving.
Gâteau de Sirop

Ingredients:
2 1/2 cups all purpose flour
1 teaspoon baking soda
1 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg
1/2 cup (1 stick) unsalted butter, room temperature
1 cup (packed) dark brown sugar
3 large eggs
"1 3/4 cups 100% pure cane syrup (such as Steens)", 3/4 cup evaporated milk
1/4 cup sour cream
1 1/2 cups chilled heavy whipping cream
Additional 100% pure cane syrup
Powdered sugar (optional)

Instructions:
Preheat oven to 350°F. Butter and flour 13 x 9 x 2-inch metal baking pan. Sift flour, baking soda, cinnamon, nutmeg, and 1 teaspoon salt into medium bowl. Using electric mixer, beat butter in large bowl until smooth. Add sugar and beat until blended. Beat in eggs, 1 at a time. Beat in 1 3/4 cups syrup, then evaporated milk and sour cream (batter may look curdled). Add dry ingredients and beat on lowest speed until blended. Transfer cake batter to prepared pan.
Bake cake until tester inserted into center comes out clean, about 50 minutes. Cool cake in pan on rack. DO AHEAD: Can be made 1 day ahead. Cover pan tightly with foil and store cake at room temperature.
Beat cream in medium bowl until peaks form. Cut cake into squares. Place on plates. Spoon whipped cream alongside; drizzle with additional syrup. Dust with powdered sugar, if desired
Broiled Crawfish with Horseradish Cocktail Sauce

Ingredients:
1 1/2 cups bottled mild tomato chili sauce (such as Homade brand)
7 teaspoons fresh lemon juice
2 teaspoons Worcestershire sauce
1 teaspoon hot pepper sauce
3 teaspoons (or more) prepared white cream-style horseradish
12 whole cloves
4 Turkish bay leaves
"1 3-ounce bag crawfish, shrimp, and crab boil (such as Zatarains)", 1 large onion, peeled, quartered
3 lemons, thinly sliced
3 celery stalks, cut into chunks
3 large garlic cloves, peeled
4 pounds fresh crawfish
Large bowl of ice cubes
Lemon wedges

Instructions:
Whisk first 4 ingredients and 3 teaspoons horseradish in medium bowl to blend. Season to taste with freshly ground black pepper and more horseradish, if desired. Transfer to small bowl. DO AHEAD: Sauce can be made 1 day ahead. Cover and chill.
Combine first 7 ingredients in 10-to 12-quart large pot. Add 4 quarts water and 2 tablespoons salt. Bring to boil over high heat, stirring until salt dissolves. Boil 5 minutes. Add crawfish and boil 5 minutes. Remove from heat. Add ice cubes to pot to stop cooking. Let crawfish sit in cooking liquid 15 minutes.
Using slotted spoon, transfer all crawfish to large bowl. Reserve 10 whole crawfish for garnish. Working with remaining crawfish 1 at a time, hold head and body with 1 hand and twist off tail portion with opposite hand. Discard head portion. Peel shell off tail and clean tail. Place tail in medium bowl. DO AHEAD: Can be made 8 hours ahead. Cover and chill tails and reserved 10 crawfish.
Divide cleaned crawfish evenly among 10 dishes. Garnish with whole crawfish.
Serve crawfish with cocktail sauce and lemon wedges.
Chicken and Sausage Jambalaya

Ingredients:
12 ounces applewood-smoked bacon, diced
1 1/2 pounds smoked fully cooked sausage (such as linguiça), halved lengthwise, cut crosswise into 1/2-inch-thick semi-circles
1 pound andouille sausages, quartered lengthwise, cut crosswise into 1/2-inch cubes
1/2 pound tasso or smoked ham (such as Black Forest), cut into 1/2-inch cubes
1 1/2 pounds onions, chopped (4 to 5 cups)
2 large celery stalks, chopped
1 8-to 10-ounce red bell pepper, coarsely chopped
1 8-to 10-ounce green bell pepper, coarsely chopped
6 large skinless boneless chicken thighs, cut into 1- to 11/2-inch pieces
2 tablespoons paprika
1 tablespoon chopped fresh thyme
1 tablespoon chili powder
1/4 teaspoon (or more) cayenne pepper
3 10-ounce cans diced tomatoes and green chiles
2 1/2 cups beef broth
3 cups (19 to 20 ounces) long-grain white rice
8 green onions, chopped (about 2 cups)
Chopped fresh Italian parsley

Instructions:
Position rack in bottom third of oven and preheat to 350°F. Cook bacon in very large pot over medium-high heat until brown but not yet crisp, stirring often, 8 to 10 minutes. Add smoked sausage, andouille, and tasso. Sauté until meats start to brown in spots, about 10 minutes. Add onions, celery, and bell peppers. Cook until vegetables begin to soften, stirring occasionally, 10 to 12 minutes. Mix in chicken. Cook until outside of chicken turns white, stirring often, 5 to 6 minutes. Mix in paprika, thyme, chili powder, and 1/4 teaspoon cayenne. Cook 1 minute. Add diced tomatoes with chiles and broth; stir to blend well. Add more cayenne, if desired. Mix in rice.
Bring jambalaya to boil. Cover pot. Place in oven and bake until rice is tender and liquids are absorbed, 45 to 48 minutes. Uncover pot. Mix chopped green onions into jambalaya; sprinkle jambalaya with chopped parsley and serve.
Dark Chocolate and Cardamom Ice Cream

Ingredients:
4 1/2 oz dark (70% cocoa solids) chocolate
Seeds from 1/2 vanilla bean
2 cardamom pods
3/4 cup whole milk
1/3 cup superfine sugar
3/4 cup heavy cream

Instructions:
Melt the chocolate in a heatproof bowl over a pan of barely simmering water, making sure the bowl doesn't touch the water.
Split the vanilla bean lengthwise and scrape out the seeds with the back of a knife. Then crush the cardamom pods with the flat of the blade of the knife.
Place the milk in a separate pan and heat to just under boiling point, then add the sugar, vanilla seeds, and cardamom pods. Stir until the sugar is dissolved.
Using a strainer to catch the crushed cardamom pods, pour the milk into the melted chocolate and stir. Add the cream, stir well, and leave to cool at room temperature.
Once cool, pour into an ice-cream maker and churn following the manufacturer's instructions. Keep in the freezer until required.
Chocolate Chip Madeleines

Ingredients:
10 tablespoons unsalted butter, plus extra for greasing
2 tablespoons of your favorite honey
3 extra-large free-range eggs
2/3 cup superfine sugar
1 cup self-rising flour, plus extra for dusting
3 1/2 oz dark (70% cocoa solids) chocolate
chopped into very small pieces

Instructions:
Melt the butter and honey in a small saucepan and simmer until syrupy—about 8 minutes. Pour into a bowl and set aside to cool. Don't worry if the mixture splits slightly.
Using an electric stand or hand-held mixer, whisk the eggs and sugar together for around 8 minutes or until the mixture has tripled in volume.
Fold in the flour then the butter mixture and leave until cold. Stir the chopped chocolate into the cake mixture. Rest in the fridge for a couple of hours.
Preheat the oven to 375°F. Butter and flour the madeleine molds. Put a teaspoonful of mixture into each mold and bake for about 15 minutes or until just firm to the touch and golden brown.
Best served warm.
White Chocolate and Cardamom Rice Pudding with Marmalade and Cointreau Sauce

Ingredients:
1/2 cup short grain rice, "1/3 cup golden bakers sugar", 1 1/3 cups 1% milk, 1/2 cup half-and-half, 3 whole cardamom pods, seeds removed and ground to a powder, 3 1/2 oz white chocolate, grated, 1/3 cup marmalade, 1/3 cup Cointreau

Instructions:
Place the rice and sugar into a medium saucepan, then pour in the milk and half-and-half. Add the cardamom powder.
Bring to a boil, then lower the heat and simmer for 15 to 20 minutes, until the rice is swollen and tender. Add a little hot water if it's looking a little dry.
Remove from the heat and stir in the grated white chocolate. Cover the pan and set aside.
To make the sauce, combine the marmalade with the Cointreau and heat gently in a pan.
Divide the rice pudding between four bowls and drizzle with the sauce.
Serve decorated with a few shavings of white chocolate, if desired.
Mixed Greens with Mustard Dressing

Ingredients:
2 tablespoons white wine vinegar, 2 tablespoons whole grain dijon mustard, 2 tablespoons minced shallot, 1 garlic clove, minced, 1/4 cup extra-virgin olive oil, 6 cups frisée, torn into bite-size pieces, 2 cups torn radicchio leaves, 2 large heads of Belgian endive, cut crosswise into 1/2-inch strips, 2 tablespoons chopped fresh chives, 2 tablespoons coarsely chopped fresh cilantro, 2 tablespoons fresh tarragon leaves

Instructions:
Whisk vinegar, mustard, shallot, and garlic in small bowl. Gradually whisk in oil. Season dressing with salt and pepper.
Toss frisée and all remaining ingredients in large bowl. Add dressing; toss to coat. Season with salt and pepper.
Mixed-Berry Oatmeal Crisps

Ingredients:
2 12-ounce packages frozen mixed berries
2 tablespoons cornstarch
2/3 cup (packed) golden brown sugar
1/2 cup unbleached all purpose flour
1/2 cup old-fashioned oats
1/2 cup finely chopped walnuts or pecans
1/2 teaspoon ground cinnamon
6 tablespoons (3/4 stick) chilled unsalted butter, cut into 1/2-inch cubes
Vanilla ice cream
6 4 1/2-inch-diameter crème brûlée dishes with 1-inch-high sides or other 1-cup ramekins or custard cups

Instructions:
Preheat oven to 425°. Toss frozen berries and cornstarch in large bowl. Let stand until cornstarch dissolves, tossing occasionally, about 20 minutes. Divide berry mixture among six 4 1/2-inch-diameter crème brûlée dishes with 1-inch-high sides. Toss brown sugar, flour, oats, nuts, cinnamon, and 1/4 teaspoon salt in large bowl. Add chilled butter; using fingertips, blend butter into mixture until coarse crumbs form. Divide oat mixture among dishes, sprinkling evenly over berry mixture.
Place dishes on rimmed baking sheet. Bake 10 minutes. Reduce oven temperature to 350°F and continue baking until crisp topping is golden brown and fruit filling is bubbling at edges, about 30 minutes longer. Cool crisps at least 15 minutes. Serve warm or at room temperature topped with scoop of vanilla ice cream.
Fudgy Meringue Cookies

Ingredients:
Nonstick vegetable oil spray
1 cup bittersweet chocolate chips (do not exceed 61% cacao; about 6 ounces), divided
1 1/2 cups powdered sugar, divided
1/3 cup unsweetened cocoa powder
2 teaspoons cornstarch
2 large egg whites, room temperature
1/2 teaspoon vanilla extract
1/8 teaspoon cream of tartar

Instructions:
Position 1 rack in top third and 1 rack in bottom third of oven and preheat to 350°F. Coat 2 large rimmed baking sheets with nonstick spray. Place 1/2 cup chocolate chips in small microwave-safe bowl. Cook in 15-second intervals until chocolate softens; stir until melted and smooth. Cool chocolate to lukewarm, about 10 minutes. Whisk 1/2 cup sugar, cocoa, and cornstarch in small bowl to blend.
Using electric mixer, beat room-temperature egg whites, vanilla, 1/8 teaspoon salt, and cream of tartar in medium bowl until soft peaks form. Add remaining 1 cup sugar in 4 additions, beating just to blend after each addition. Continue to beat until meringue is thick and glossy like marshmallow creme, about 2 minutes longer. Beat in cocoa mixture. Fold in melted chocolate, then 1/2 cup chips.
Drop batter by rounded tablespoonfuls onto prepared sheets, spacing 3 inches apart. Bake cookies 7 minutes. Reverse sheets and bake until dry-looking and cracked, about 6 minutes. Cool cookies on sheets 5 minutes. Transfer cookies to racks and cool completely.
Pernod Cocktail

Ingredients:
2 ounces Pernod, 1/2 ounce water, 1 dash sugar syrup, 1 dash Angostura bitters, 3 or 4 ice cubes

Instructions:
Combine all ingredients in a cocktail shaker and shake vigorously. Strain into a cocktail glass.
Pimiento Mac and Cheese

Ingredients:
1 7- to 8-ounce red bell pepper, seeded, cut into 1-inch pieces
2 garlic cloves, halved, divided
1/2 cup panko (Japanese breadcrumbs)
3 tablespoons unsalted butter, room temperature, divided
1/2 cup freshly grated Parmesan cheese, divided
3/4 cup drained mild Peppadew peppers in brine, 1 tablespoon brine reserved
1/4 teaspoon ground ancho chiles
1 1/4 cups (packed) coarsely grated extra-sharp cheddar cheese
1 cup (packed) coarsely grated whole-milk mozzarella
8 ounces medium shell pasta or gemelli
Look for panko at supermarkets and at Asian markets. Ground ancho chiles are available in the spice section of supermarkets and at Latin markets.

Instructions:
Bring 1/2 cup water, bell pepper, and 1 1/2 garlic cloves to boil in small saucepan. Cover; reduce heat to medium-low. Simmer until pepper is soft, about 15 minutes.
Toast panko in skillet over medium-high heat until golden, stirring often, 5 to 6 minutes. Transfer to bowl; cool to lukewarm. Rub 1 tablespoon butter into crumbs to coat. Mix in 1/4 cup Parmesan.
Transfer bell pepper mixture to processor. Add Peppadews and 1 tablespoon brine, 2 tablespoons butter, ground chiles, and 1/2 garlic clove; then add cheddar and 1/4 cup Parmesan. Blend until sauce is smooth; season to taste with salt and pepper.
Preheat oven to 400°F. Butter 8-cup baking dish (or 6 individual dishes). Cook pasta in pot of boiling salted water until tender but still firm to bite. Drain; return to pot. Stir sauce and mozzarella into pasta. Season with salt and pepper. Spoon pasta into dish. Sprinkle with crumb topping.
Bake pasta until topping is crisp and sauce is bubbling, about 25 minutes (15 for individual). Let stand 10 minutes.
Peanut Butter and Jelly Bars

Ingredients:
Nonstick vegetable oil spray
1 1/2 cups unbleached all purpose flour
1/2 teaspoon baking powder
3/4 cup smooth peanut butter
3/4 cup (packed) golden brown sugar
1/2 cup (1 stick) unsalted butter, room temperature
1 large egg
1 teaspoon vanilla extract
3/4 cup grape jelly or other jelly or jam
2/3 cup coarsely chopped salted dry-roasted peanuts

Instructions:
Preheat oven to 350°F. Line 8 x 8 x 2-inch metal baking pan with heavy-duty foil, leaving 2-inch overhang around edges and pressing firmly into corners and up sides of pan. Coat foil with nonstick spray. Whisk flour, baking powder, and 1/4 teaspoon salt in small bowl. Using electric mixer, beat peanut butter, sugar, and butter in large bowl until smooth. Add egg and vanilla; beat on low speed until smooth. Add flour mixture; beat on low speed just to blend. Transfer half of dough to prepared pan (about scant 1 1/2 cups). Place remaining dough in freezer for 10 minutes. Using fingertips, press dough evenly onto bottom of pan. Spread jelly over in even layer. Remove dough from freezer; using fingertips, break into grape-size pieces and scatter over jelly layer. Sprinkle chopped nuts over.
Bake bars until top is golden brown, about 30 minutes. Cool bars completely in pan on rack.
Using foil overhang as aid, lift bars from pan. Gently peel foil from edges. Cut into 16 squares. DO AHEAD: can be made 3 days ahead. Store airtight at room temperature.
Roasted Pears with Blackberries, Ricotta, and Lavender Sugar

Ingredients:
1 1/2 cups sugar
1 tablespoon dried lavender blossoms
6 unpeeled pears (such as Bosc or Bartlett), quartered, cored
2 tablespoons fresh lemon juice
1 12-ounce package frozen blackberries
1 cup fresh whole-milk ricotta cheese, crème fraîche, or vanilla ice cream
"Ingredient info: Look for dried lavender blossoms at ssupermarkets
farmers markets
and natural foods stores
or order them from deandeluca.com."

Instructions:
Grind first 2 ingredients in processor until lavender is finely chopped. DO AHEAD: Lavender sugar can be made 1 month ahead. Store airtight at room temperature.
Preheat oven to 425°F. Generously butter large rimmed baking sheet. Toss pears, lemon juice, and 3 tablespoons lavender sugar in large bowl. Transfer pears, 1 cut side down, to baking sheet. Roast 20 minutes. Turn pears, placing other cut side down. Sprinkle with 1 tablespoon lavender sugar; roast 20 minutes. Turn pears, skin side down. Preheat broiler. Sprinkle pears with 1 tablespoon lavender sugar. Broil until pears begin to caramelize, about 8 minutes. Arrange berries around pears; sprinkle with 1 tablespoon lavender sugar. Broil until berries begin to release juice, about 5 minutes.
Divide pears, berries, and juice among bowls. Top with dollop of ricotta and serve.
Espresso Pound Cake with Cranberries and Pecans

Ingredients:
1 cup plus 6 tablespoons unbleached all purpose flour
2 tablespoons cornstarch
1 teaspoon ground cinnamon or 1/2 teaspoon ground allspice or ground cardamom
3/4 teaspoon baking powder
4 large eggs
1 teaspoon vanilla extract
1 cup (2 sticks) unsalted butter, room temperature
3/4 cup sugar
1/2 cup (packed) golden brown sugar
1 tablespoon plus 2 teaspoons instant espresso powder or instant coffee
1 cup chopped toasted pecans, walnuts, hazelnuts, or almonds, divided
1 cup dried sweetened cranberries or dried unsweetened cherries or blueberries, divided
1 1/2 cups powdered sugar
2 tablespoons milk

Instructions:
Preheat oven to 325°F. Butter 9 x 5 x 3-inch metal loaf pan. Dust pan with flour, tapping out excess.
Whisk flour, cornstarch, cinnamon, baking powder, and 1/4 teaspoon salt in medium bowl. Whisk eggs and vanilla in small bowl to blend. Using electric mixer, beat butter, sugar, brown sugar, and 1 tablespoon espresso powder in large bowl until fluffy, 2 to 3 minutes. With mixer running, gradually add egg mixture. Add flour mixture in 2 additions, beating on low speed just to blend after each addition. Beat batter 30 seconds on medium speed. Add 3/4 cup pecans and 3/4 cup cranberries; beat just to incorporate evenly. Transfer batter to pan.
Bake cake until top is golden and toothpick inserted into center comes out clean, about 1 hour 10 minutes. Cool in pan on rack 5 minutes. Invert cake; remove pan. Turn cake top side up; cool on rack.
Mix powdered sugar, milk, and 2 teaspoons espresso powder in medium bowl. Spread glaze over top of cake, allowing some to drip down sides. Sprinkle 1/4 cup nuts and 1/4 cup cranberries over. Let stand until glaze sets, about 20 minutes. DO AHEAD: Can be made 5 days ahead. Store airtight at room temperature.
Chocolate Puddings with Orange Whipped Cream

Ingredients:
1/2 cup plus 3 tablespoons sugar, divided
2 tablespoons cornstarch
2 1/2 cups whole milk, divided
2 large egg yolks
1 1/2 cups bittersweet chocolate chips (do not exceed 61% cacao) or semisweet chocolate chips
2 tablespoons (1/4 stick) unsalted butter
1/4 teaspoon vanilla extract
3/4 cup chilled whipping cream
1 tablespoon Grand Marnier or other orange liqueur
1/4 teaspoon finely grated orange peel
"Test-kitchen tip: If you dont have orange liqueur on hand
skip the orange peel and use another liqueur. Kahlúa or amaretto would work well in this recipe."

Instructions:
Whisk 1/2 cup plus 2 tablespoons sugar, cornstarch, and 1/4 teaspoon salt in medium saucepan to blend. Add 1/2 cup milk and egg yolks; whisk until smooth. Whisk in remaining 2 cups milk. Bring mixture to boil over medium-high heat, whisking constantly. Boil 1 minute, whisking constantly. Remove pan from heat; add chocolate chips and butter. Whisk pudding until melted and smooth. Stir in vanilla.
Divide pudding evenly among 6 dessert cups or wineglasses. Place plastic wrap directly onto surface of each, covering pudding completely. Chill until cold, at least 3 hours. DO AHEAD: can be made up to 1 day ahead. Keep chilled.
Using electric mixer, beat whipping cream, Grand Marnier, orange peel, and remaining 1 tablespoon sugar in medium bowl until peaks form. DO AHEAD: Can be made 2 hours ahead. Cover and chill.
Uncover puddings. Spoon dollop of whipped cream over each and serve.
Mushroom Croque-Monsieur

Ingredients:
1 1/2 tablespoons butter
1 1/2 tablespoons all purpose flour
1 1/2 cups whole milk
1 bay leaf
1/2 cup finely grated Parmesan cheese
Pinch of freshly grated nutmeg
Hot pepper sauce
1 8-ounce package crimini (baby bella) or button mushrooms, trimmed
7 tablespoons butter, room temperature, divided
2 tablespoons minced shallot
12 1/3-inch-thick slices egg bread
6 thin ham slices
12 ounces Gruyère cheese; 9 ounces thinly sliced, 3 ounces grated
2 tablespoons grated Parmesan cheese
Fresh tarragon leaves (optional)

Instructions:
Melt butter in heavy-medium saucepan over medium heat. Add flour; stir until pale golden, about 2 minutes. Whisk in milk. Add bay leaf. Increase heat to medium-high; whisk until mixture begins to boil. Reduce heat to medium; stir until sauce coats back of spoon, about 5 minutes. Remove from heat. Add cheese and nutmeg. Season with hot sauce, salt, and pepper.
Place mushrooms in processor. Using on/off turns, process until finely chopped. Melt 3 tablespoons butter in large skillet over medium-high heat. Add mushrooms and shallot; stir until mushrooms are browned and dry, about 8 minutes. Transfer to plate to cool.
Preheat broiler. Spread remaining butter over 1 side of bread slices. Place bread, buttered side up, on rimmed baking sheet. Broil until golden, watching closely and rotating sheet halfway through broiling, about 3 minutes. Cool bread. Preheat oven to 450°F. Turn 6 bread slices over; top with ham and sliced cheese. Top with remaining bread slices, broiled side up. Press to compress. Spread about 2 tablespoons sauce over sandwiches, leaving 1/3-inch plain border. Divide mushroom mixture atop sauce. Sprinkle with grated Gruyère and Parmesan.
Bake sandwiches until cheese inside melts and cheese on top turns golden, about 10 minutes. Top with tarragon, if desired.