Cream butter, oil and sugar; add eggs, vanilla and buttermilk. Add flour, cocoa, soda, ... cloves. Stir in zucchini. Put in 9 x 13-inch pan. Cover with chocolate chips and nuts. Sprinkle sugar ... Very moist. Freezes well.
Ingredients: 16 (chips .. cinnamon .. cloves .. cocoa .. eggs .. flour ...)