Chocolate Zucchini Cake - cooking recipe

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 butter, at room temperature
1/2 cup vegetable oil
2 large eggs
1/2 teaspoon vanilla extract
1/2 cup buttermilk
2 cups grated unpeeled zucchini
6 ounces semi-sweet chocolate chips
3/4 cup chopped walnuts (optional)

Preparation

Preheat oven to 325 degrees.
Butter & flour a 9x13 pan.
Sift flour, cocoa powder, baking soda, & salt into a medium size bowl.
Beat sugar, butter, & oil with dry ingredients until well blended.
Add eggs, one at a time, beating well after each addition.
Beat in vanilla.
Mix in dry ingredients alternately with buttermilk in 3 additions each.
Stir in grated zucchini.
Pour batter into prepared pan.
Sprinkle chocolate chips & nuts (optional) over top.
Bake about 50 minutes, testing with toothpick.
Cool cake in pan.