Preheat oven to 350 degrees. Spray a 12 1/2 X 8 in baking pan with non stick cooking spray.
In a large bowl, beat margarine at medium speed until creamy. Add sugar and beat at high speed until light, 1-2 minutes. Add egg whites and continue to mix. Add molasses and beat until no lumps remain. In a separate bowl, sift together flours, dry skim milk powder, baking powder, baking soda, ginger, cinnamon, nutmeg, and cloves. Add sifted ingredients into margarine mixture and stir together thoroughly. Fold in nuts. The dough will be sticky.
Place dough in the center of the prepped pan. Using a spatula, spread dough evenly in pan, and bake for 25-30 minutes. Allow to cool at least 5 minutes. Cut into 30 bars (or however many you’d like!).