Lemon Bars

1 c. flour
1/2 c. butter or margarine
1/4 c. powdered sugar
2 large eggs
1 c. sugar
1/2 t. baking powder
1/4 t. salt
2 T. lemon juice

Mix flour, butter, and powdered sugar thoroughly. Press into a non-greased square pan. Bake for 20 minutes at 350°. While baking, beat eggs, sugar, baking powder, salt, and lemon juice until light and fluffy. Pour over hot crust. Bake for 25 minutes more. Dust with powdered sugar.