6 c. rhubarb, fresh or frozen
2 c. water
1 c. sugar
2 tbsp. cornstarch

Bring water to boil, add rhubarb and sugar. Boil until soft, then add cornstarch and 1/2 cup cold water for thickening.

Take your favorite pie crust and fit into 9 x 9 pan. Pour sauce in hot or cold, then fit crust on top. Bake at 350 degrees until crust is nicely browned. Eat hot or cold with milk and sugar.