Preheat oven to 350° F.
With a spoon, mix margarine and sugar well; add all remaining ingredients except nuts and blend until smooth.
Stir in nuts and pour into a greased 8"X8"X2" or 9"X9"X2" pan.
Bake 30 minutes or until sides shrink slightly from pan and top springs back when touched.
Cool upright in pan on a wire rack, then cut into squares.