Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: mix flour, rolled oats, brown sugar, margarine and cinnamon until crumbly: press half of this mixture into a 9" greased pan. cover with chopped rhubarb. combine sugar, cornstarch, and water. cook until thick and clear in a small saucepan. remove from heat and add vanilla. pour over rhubarb. top with remaining crumbs. bake at 350°f for 1 hour.

Target recipe: preheat oven to 375°f. mix rhubarb with sugar, flour, and butter and then place into a 9" pan; set aside. mix together the topping ingredients until crumbly. sprinkle over rhubarb mixture in pan and shake pan to allow the topping to settle down into the filling a bit. bake 40 minutes and serve warm.