lemon squares

To bring to a barbecue. A very simple recipe:

2 c. flour

1/2 lb. butter

1 t. baking powder

1/4 cup fresh lemon juice (about 2 lemons' worth)

1/2 c. powdered sugar

1 1/2 c. granulated sugar

3 eggs

1 t. freshly grated lemon peel

Preheat oven to 350 degrees F. Mix flour, powdered sugar, and butter (I use a food processor) and press into the bottom of a greased 9" x 13" pan. Bake 20 mins. Meanwhile, combine remaining ingredients and whip thoroughly. Pour lemon mixture over baked crust and bake another 25 minutes (or until edges brown). Dust with powdered sugar and allow to cool completely before cutting into squares.