Rhubarb Dessert
["1 c. flour", "1 c. brown sugar", "1/2 c. melted butter", "3/4 c. oatmeal", "1 tsp. cinnamon", "4 c. diced rhubarb", "1 c. sugar", "2 Tbsp. cornstarch", "1 c. water", "1 tsp. vanilla"]
["Mix flour, brown sugar, butter, oatmeal and cinnamon.", "Press half of mixture into a greased baking pan.", "If desired, reserve half of mixture for topping.", "Cover with rhubarb.", "Cook sugar, cornstarch, water and vanilla.", "Pour over rhubarb.", "Top with remaining crumbs.", "Bake 1 hour at 350\u00b0 to 375\u00b0.", "Serve warm, topped with whipped cream, if desired.", "Yield: 9 to 12 servings."]
["flour", "brown sugar", "butter", "oatmeal", "cinnamon", "rhubarb", "sugar", "cornstarch", "water", "vanilla"]