1 c. butter
2 c. flour
1/2 c. confectioners' sugar
2 c. sugar
4 tbsp. flour
1 tsp. baking powder
4 eggs
6 tbsp. lemon juice
Pinch of salt

Preheat oven to 350 degrees. Melt butter; add sifted flour and powdered sugar. Mix well and pat into ungreased 9"x13" pan. Bake 15 minutes. Mix together sugar, flour and baking powder. Add eggs; one at a time, lemon juice and salt. Pour this over hot crust, return to oven for 25 to 30 minutes more. Cool completely. Cut into small squares. Dust top with confectioners' sugar.