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

Place rhubarb in greased 8-inch square baking pan. Mix flour, sugar, cinnamon and butter; spoon over rhubarb.

Bake at 350°F for 45 minutes; top with whipped cream, if desired.