Rhubarb Crunch
["1 c. flour", "3/4 c. oatmeal", "1 c. brown sugar", "1 tsp. cinnamon", "1/2 c. melted butter", "4 c. rhubarb", "1 c. sugar", "2 Tbsp. cornstarch", "1 tsp. vanilla", "1 c. water"]
["Mix until crumbly the first 5 ingredients.", "Press 1/2 of crumbs in greased 7 x 9-inch baking pan.", "Top with rhubarb.", "Then combine in saucepan the next 4 ingredients.", "Cook until thick and clear.", "Pour over rhubarb.", "Top with remaining crumbs.", "Bake at 350\u00b0 for 1 hour.", "Cut in squares and serve with whipped cream."]
["flour", "oatmeal", "brown sugar", "cinnamon", "butter", "rhubarb", "sugar", "cornstarch", "vanilla", "water"]