1 3/4 c. oatmeal
2 c. brown sugar
2 c. flour
1/2 tsp. salt
1/2 tsp. cinnamon

Mix and add 1 cup melted butter. Pat into large cake pan. Cover with 8 cups cut-up rhubarb.

Cook until clear 2 cups sugar, 1 1/2 cups water, and 4 tablespoons cornstarch. Add 1 teaspoon vanilla. Pour over rhubarb and top with remaining crumbs. Bake 1 hour at 350 degrees.