Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: thinly slice potatoes, cover with cold water and set aside. in medium saucepan, melt butter. stir in flour until no lumps remain, add milk and whisk until combined. cook milk and flour mixture until thick enough to coat the back of a spoon. grease a 2 qt casserole dish. layer 1/3 sliced potatoes. 1/2 of onion. 1/3 white sauce. repeat layers, finishing up with potatoes and sauce. dot with butter. cover and bake 30 minutes at 350 degrees. uncover and back an additional 1 hour.

Target recipe: preheat oven to 400 degrees fahrenheit. lightly spray a 2 quart casserole with vegetable spray. arrange a layer of potatoes in casserole, then sprinkle with some of onion, flour, salt and pepper. continue to layer until all potatoes, onion, flour, salt and pepper are used. dot top with butter, then pour milk over all. bake 20 min, then reduce heat to 350 degrees fahrenheit and bake 50 to 60 min longer or until potatoes are tender.