Dark Chocolate Zucchini Cake

Ingredients

• 2 cups all-purpose flour
• 1/2 cup unsweetened cocoa powder
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 teaspoon ground cinnamon
• 1/2 cup unsalted butter, softened
• 1/2 cup vegetable oil
• 1 1/2 cups granulated sugar
• 2 large eggs
• 2 teaspoons vanilla extract
• 2 cups zucchini, grated and lightly packed
• 4 ounces dark chocolate, melted
• 1 cup dark chocolate chips
• 2 tablespoons powdered sugar, for dusting