Double Chocolate Biscotti

Bahan-bahan (30 porsi)

• 1¾ cups + 2 tablespoons all-purpose flour, (spooned into measuring cup and leveled-off)
• ¼ cup + 2 tablespoons natural unsweetened cocoa powder, (such as Hershey's)
• 1 teaspoon baking soda
• ¾ teaspoon salt
• 1/2 cup (1 stick) unsalted butter, at room temperature
• ¾ cup + 2 tablespoons granulated sugar
• 2 large eggs
• 2 teaspoons vanilla extract
• 1 cup semi-sweet chocolate chips