Zucchini Chocolate Cake - Tuttle Orchards

Ingredients

• 2 1/4 cups sifted all purpose flour
• 1/2 cup unsweetened cocoa powder
• 1 teaspoon baking soda
• 1 teaspoon salt
• 1 3/4 cups sugar
• 1/2 cup (1 stick) unsalted butter, room temperature
• 1/2 cup vegetable oil
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup milk or buttermilk
• 2 cups grated unpeeled zucchini (about 2 1/2 medium)
• 1 6-ounce package (about 1 cup) semisweet chocolate chips
• 3/4 cup chopped walnuts (optional)