2/3 c. butter, softened
3 eggs
1 lb. box light brown sugar
1 tsp. vanilla
1 tsp. baking powder
1 tsp. cinnamon
1/2 tsp. all spice
1 c. broken nuts (opt.)

Mix all ingredients together in order listed. Put into lightly greased 9 x 13 pan. Bake at 350 degrees for 22-25 minutes. May still be a little gooey inside. Let cool. Cut into bars for squares.