Rhubarb Rumble
["1/2 c. melted butter", "1 c. flour", "1 tsp. cinnamon", "1 c. brown sugar", "3/4 c. oatmeal, uncooked", "4 c. diced rhubarb", "1 c. sugar", "2 Tbsp. cornstarch", "1 c. water", "1 tsp. vanilla"]
["Mix flour, brown sugar, oatmeal and cinnamon in a bowl.", "Add melted butter.", "Press half of mixture in greased baking pan.", "Put diced rhubarb on mixture."]
["butter", "flour", "cinnamon", "brown sugar", "rhubarb", "sugar", "cornstarch", "water", "vanilla"]