chocolate zucchini cake

Ingredients

• 1 stick butter or margerine
• 1 2/3 cups sugar
• 1/4 cup oil
• 2 - eggs
• 1 teaspoon vanilla extract
• 2 1/2 cups flour
• 1/4 cup cocoa
• 1/2 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon cinnamon
• 1/4 teaspoon salt
• 1/2 cup buttermilk or sour milk
• 2 cups grated zucchini, partially peeled
• 1 1/2 cups semi-sweet chocolate chips
• CREAM CHEESE FROSTING
• 3 ounces cream cheese
• 1/2 cup butter, softened (may omit butter and use half and half but more than 2 tablespoons.
• 2 tablespoons milk or more
• 2 cups powdered sugar