Rhubarb Matrimonial Square - cooking recipe

Ingredients

3 cups rhubarb, cut in 1/2 inch pieces
3/4 cup sugar
2 tablespoons cornstarch
1 1/2 cups flour
1/4 teaspoon baking soda
1 cup brown sugar
1 3/4 cups rolled oats
3/4 cup butter

Preparation

In a saucepan, cook rhubarb with 1/2 cup of the sugar until it is tender.
Combine 1/4 cup of sugar with cornstarch and add to the rhubarb mixture.
Continue cooking 4-5 minutes.
Cool.
Sift flour and baking soda, brown sugar and rolled oats.
Cut in butter.
Pat half of this mixture into a 9 x 13 pan (greased).
Spoon cooled rhubarb mixture over.
base.
Top with other half of crumbed mixture.
Bake 375F 35-45 minutes.
Cut in squares once cooled.