Triple Chocolate Loaf Cake

Ingredients

• 1 cup boiling water
• 5 ounces bittersweet chocolate, best quality
• 2 tablespoons natural unsweetened cocoa powder, such as Hershey's
• 1 teaspoon instant coffee granules, such as Nescafé
• 2 sticks (1 cup) unsalted butter, at room temperature
• 2 cups plus 2 tablespoons all-purpose flour, spooned into measuring cup and leveled off, divided
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1 cup semisweet chocolate chips, best quality
• 1 cup granulated sugar
• 1 cup packed dark brown sugar
• 3 extra-large eggs, at room temperature
• 2 teaspoons vanilla extract