My Mom sent me this recipe a couple years ago and it is much loved in our family. I usually double it (to make 8 servings) and put it in a cake pan.
Baked Rhubarb Dessert
1 c. brown sugar
1 c. sugar
3/4 cup old fashioned oats
2 Tbsp. cornstarch
1 cup flour 1 c. water
5-1/2 Tbs butter melted 1 tsp. vanilla
1/2 tsp ground cinnamon
4 cup cut up rhubarb
whipped cream (or vanilla ice cream)
1. Mix brown sugar, oats, flour, cinnamon, and melted butter together. Put half of the mixture in a 9″ pie pan and press down. Spread rhubarb on top.
2. In a saucepan mix sugar, cornstarch, and water and cook until clear and thickened. Add vanilla. Pour over rhubarb. Cover with remaining half of the oats mixture. bake in a preheated 350 degree oven for 45 min. Serve warm with whipped cream.