Lemon Squares
["1 c. butter", "1/4 tsp. salt", "2 c. flour", "1/2 c. confectioners sugar", "4 eggs, beaten", "4 Tbsp. flour", "2 c. sugar", "6 Tbsp. lemon juice and rind"]
["Crust:", "Blend butter, salt, 2 cups flour and confectioners sugar.", "Pat into a 13 x 9-inch pan.", "Bake at 350\u00b0 for 20 minutes."]
["butter", "salt", "flour", "confectioners sugar", "eggs", "flour", "sugar", "lemon juice"]