Lemon Squares
["1 c. butter or margarine", "1/2 c. powdered sugar", "2 c. flour", "4 eggs", "2 c. sugar", "6 Tbsp. lemon juice", "1/2 tsp. baking powder", "1 Tbsp. flour", "1 c. chopped pecans"]
["Mix butter, sugar and flour.", "Press into 10 x 14-inch greased pan.", "Bake 15 minutes at 325\u00b0.", "Beat eggs slightly and add remaining ingredients.", "Pour over pastry.", "Bake for 40 to 50 minutes.", "Dust with powdered sugar when cool.", "Cut into squares."]
["butter", "powdered sugar", "flour", "eggs", "sugar", "lemon juice", "baking powder", "flour", "pecans"]