Lemon Bar - cooking recipe

Ingredients

1 c. melted butter or oleo
2 c. flour
1/2 c. powdered sugar
4 eggs, well beaten
4 Tbsp. flour
4 Tbsp. lemon juice
2 c. sugar
1 tsp. baking ???

Preparation

Mix together first 3 ingredients.
Spread on greased 9 x 13 x 2-inch pan.
Bake 15 minutes at 350\u00b0.