Golden Bars

1 1/2 cups sifted cake flour
2 teaspoons baking powder
1/4 teaspoon salt
2/3 cup shortening, melted
2 cups brown sugar
2 eggs
1 teaspoon vanilla flavoring
2/3 cup chopped nuts

Sift flour with baking powder and salt. Combine shortening and sugar in saucepan; add sifted ingredients, mixing well. Add an egg at a time, beating well; add vanilla and nuts. Spread in 9 x 12-inch pan. Bake at 350 degrees for 30 minutes. Cool; cut into 2 x 1-inch bars.