Mix and sift flour, baking powder and salt. Melt shortening and add brown sugar. Stir until well mixed. Allow to cool slightly. Add eggs one at a time, beating well after each addition.
Add dry ingredients, then nutmeats and chocolate. Pour into greased pan about 10 1/2' X 15 1/2 " x 3/4". Bake at 350 degrees F. Time: 25-30 minutes. Yield: 48 squares
When almost cool, cut into squares approximately 2"x2"