Chocolate Zucchini Cake

Ingredients

• 1 cup butter, softened
• 1/2 cup vegetable oil
• 1-1/2 cups sugar
• 2 large eggs, lightly beaten
• 1/2 cup buttermilk
• 1 teaspoon vanilla extract
• 2-1/2 cups all-purpose flour
• 1/4 cup baking cocoa
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon ground cloves
• 2 cups shredded zucchini
• 1/2 cup chopped nuts
• 1/2 cup semisweet chocolate chips