Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: preheat oven to 400°f. for filling: mix rhubarb, sugar, and flour. transfer to a 10-inch deep-dish pie plate. for topping: cream the butter and sugars. blend in the flour and cinnamon. stir in the walnuts. crumble the topping over the rhubarb mixture. baking: place the crisp on foil-lined baking sheet. bake for 35-40 minutes or bubbling and golden brown on top. cool slightly and serve with vanilla ice cream or whipped cream.

Target recipe: preheat oven to 350, grease 9x13 baking dish. mix oats,brown sugar,flour and butter together, put 1/2 of mixture into the bottom of baking dish, place rhubarb over the mixture and sprinkle with cinnamon. in medium saucepan cook water,sugar,cornstarch and vanilla over medium heat until thick, let cool slightly,pour over rhubarb and sprinkle remaining oats+flour mixture on top bake for 30-35 minutes.