Lemon Bars

1 cup flour
1/2 cup butter
1/4 cup powdered sugar
2 egg, well beaten
2 tablespoons lemon juice
1 cup sugar
1/2 teaspoon baking powder
2 tablespoon flour 

Mix flour, butter, powdered sugar and press
into 8 inch square pan. Bake at 350 degrees
for 20 minutes. Mix eggs, juice, sugar, baking
powder and flour. Pour over baked shell and
return to oven for 20 minutes. Dust with powdered
sugar. Cool before cutting.