1 c Flour 1/2 c Brown sugar 1 ts Cinnamon 4 c Rhubarb 1 c Water 3/4 c Oatmeal 1/2 c Melted butter 3/4 c Sugar 2 tb Cornstarch 1 ts Vanilla Mix together flour, oatmeal, brown sugar, butter and cinnamon. Press half of mixture into 8 X 8 pan. Into shell place rhubarb. Cook sugar, cornstarch, water and vanilla until clear. Pour over rhubarb. Top with remaining crust. Bake at 350 for about 1 hour.