Directions Cream together butter or margarine, vegetable oil and sugar.**Add eggs, sour milk, and vanilla. Blend well.**In a separate bowl, sift dry ingredients together.**Blend dry ingredients into the butter mixture.**Add grated zucchini, and mix well.**Spread in a greased floured 9 x 13 inch pan. Sprinkle walnuts and chocolate chips on top.**Bake in a preheated 325 degrees F (165 degrees C) oven for 45 minutes.**
Chocolate Zucchini Cake I Recipe

Ingredients
butter,vegetable oil,white sugar,egg,milk,vanilla,flour,baking soda,cinnamon,clove,salt,cocoa powder,zucchini,walnut,chocolate
Directions Cream together butter or margarine, vegetable oil and sugar.**Add eggs, sour milk, and vanilla. Blend well.**In a separate bowl, sift dry ingredients together.**Blend dry ingredients into the butter mixture.**Add grated zucchini, and mix well.**Spread in a greased floured 9 x 13 inch pan. Sprinkle walnuts and chocolate chips on top.**Bake in a preheated 325 degrees F (165 degrees C) oven for 45 minutes.**
Directions Cream together butter or margarine, vegetable oil and sugar.**Add eggs, sour milk, and vanilla. Blend well.**In a separate bowl, sift dry ingredients together.**Blend dry ingredients into the butter mixture.**Add grated zucchini, and mix well.**Spread in a greased floured 9 x 13 inch pan. Sprinkle walnuts and chocolate chips on top.**Bake in a preheated 325 degrees F (165 degrees C) oven for 45 minutes.**