• 1/2 cup unsalted butter (softened)
• 1 3/4 cups granulated sugar
• 1 teaspoon pure vanilla extract
• 1/2 teaspoon baking powder
• 2 1/2 cups all-purpose flour
• 3/4 cup Dutch-process cocoa*
• 2 1/2 cups shredded zucchini
• 2/3 cup chocolate chips
• 10 ounces semi-sweet chocolate chips