1 cup brown sugar 1/4 cup butter 1 egg 1 cup flour 1 teaspoon baking powder 1/4 teaspoon salt 1/4 cup nuts, chopped 1/2 teaspoon vanilla Heat sugar and butter in a saucepan, stirring constantly until sugar is thoroughly dissolved. Do not boil. Let cool. Beat the egg well, stir in flour with baking powder, salt, then nuts and vanilla. Spread in a greased 9-inch square pan. Bake 20 minutes in a moderate oven, 350 degrees. Cut in squares and cool in pan.