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

Put half of mixture in greased pan. Add 4 cups cut-up rhubarb. Boil the following until thick: 1 c. water 1/2 tsp. vanilla 2 tbsp. cornstarch

Pour over rhubarb, cover with crunch. Bake 1 hour at 350 degrees.