1 c. butter
1/2 c. powdered sugar
2 c. flour
4 eggs, beaten
2 c. sugar
4 tbsp. finely grated lemon rind
6 tbsp. lemon juice
1 tsp. baking powder
4 tbsp. flour

Mix first 3 ingredients and pat into 9 x 13 inch pan. Bake at 350 degrees for 20 minutes and cool.

Mix last 6 ingredients well and cover the cooled crust. Bake at 350 degrees for 25 minutes. sift powdered sugar over top. Cool and cut into squares.