Lemon Bars - cooking recipe

Ingredients

1 c. soft butter or margarine
2 1/4 c. plain flour
1 1/2 c. powdered sugar
2 c. granulated sugar
1 tsp. baking powder
4 eggs, beaten
1/4 c. lemon juice

Preparation

Mix butter, 2 cups flour and 1/2 cup powdered sugar together. Pat in bottom of a 9 x 13-inch pan. Bake at 350\u00b0 for 15 minutes. Sift granulated sugar, 1/4 cup flour and baking powder together. Add eggs and lemon juice.
Mix until smooth. Spread over crust. Bake 25 minutes longer.
Let cool 10 minutes, then frost.