Deluxe Lemon Bars

 2 cups sifted flour
½ cup sifted powdered sugar
1 cup butter
...
Preheat oven to 350 degrees F. Mix and press into 9x13 baking pan. Bake 20 minutes. Remove from oven.

4 slightly beaten eggs
2 cups sugar
1/3 cup lemon juice
¼ cup flour
½ tsp baking powder

Stir together and pour over baked crust. Bake 25 minutes. Remove from oven; sprinkle with additional powdered sugar.