Ingredients

1/2 Cup milk
2 Teaspoon vinegar
1/2 Cup melted butter
1/2 Cup shortening
1 3/4 Cup sugar
2 eggs, beaten
1 Teaspoon vanilla
1 Teaspoon ground cinnamon
1/2 Teaspoon baking powder
1/4 Teaspoon salt
4 Tablespoon cocoa
1/4 Teaspoon baking soda
1/2 Teaspoon ground cloves
1/4 Cup chocolate chips
2 1/2 Cup flour
2 Cup peeled, seeded and grated zucchini

Instructions

Sour milk with the vinegar. Mix in all remaining ingredients and pour into a greased 9 by 13-inch cake pan. Bake at 350 degrees for 40 to 45 minutes or until cake tests done. Frost with favorite chocolate frosting.