Desserts - Lemon Squares

3/4 cup butter
1/3 cup powdered sugar (glace)
1 1/2 cups flour

1 1/2 cups white sugar
3 eggs
3 Tablespoons flour
1/4 cup fresh lemon juice
1 teaspoon lemon rind
powdered sugar to sprinkle

Combine butter, 1/3 cup powdered sugar, flour; pat into 8" square greased pan. Bake at 350 deg F (abt 170) for 20-30 minutes. Blend sugar, eggs, flour, lemon juice and rind and pour over hot crust. Bake at 350 deg. 20-30 minutes. When cooled, sprinkle with powdered sugar. DO NOT DOUBLE RECIPE. 16-18 pieces