Rhubarb Squares

1 C flour
½ C sifted powdered sugar
½ C butter/margarine softened
1 C sugar
¼ C flour
¾ tsp. Baking powder
2 eggs, beaten
3 C diced rhubarb

Combine 1 C flour and powdered sugar; cut in butter with pastry blender until mixture resembles coarse meal.  Press mixture evenly into a lightly 9 x 13 pan. Bake 350 for 12 minutes.

Combine sugar, ¼ C flour, and baking powder; add eggs, and mix well.  Stir in rhubarb, and pour over prepared crust.  Bake 325 for 45 – 50 minutes. Cool and cut into squares.