Rhubarb Crunch
["1 c. flour", "1 c. brown sugar", "1 tsp. cinnamon", "3/4 c. oats", "1/2 c. melted margarine or butter", "diced rhubarb", "1 c. sugar", "2 Tbsp. cornstarch", "1 c. water", "1 tsp. vanilla"]
["Mix the first 5 ingredients until crumbly; press half of the crumb mixture into greased baking dish.", "Cover with rhubarb. Combine sugar, cornstarch, water and vanilla.", "Cook until thickened and clear.", "Pour over rhubarb.", "Top with remaining crumbs.", "Bake 1 hour at 350\u00b0."]
["flour", "brown sugar", "cinnamon", "oats", "margarine", "rhubarb", "sugar", "cornstarch", "water", "vanilla"]