1/2 c. melted butter
1 c. oatmeal
1 c. flour
1 c. brown sugar
4 c. rhubarb, cooked with 1 c. sugar
1 c. water
1 tsp. vanilla
dash of cinnamon
2 tbsp. cornstarch

Mix butter, oatmeal, flour and brown sugar until crumbly. Place half in bottom of 8-inch pan.

Cook remaining ingredients until thick and clear. Put rhubarb on crumbly bottom. Cover with remaining crumbs.

Bake at 350°F for 45 to 60 minutes.