Devil’s Food Cake

Ingredients

• 9 tablespoons unsweetened cocoa powder
• 1½ cups cake flour (not self-rising)
• ½ teaspoon salt
• 1 teaspoon baking soda
• ¼ teaspoon baking powder
• 4 ounces (1 stick) unsalted butter, at room temperature
• 1½ cups granulated sugar
• 2 large eggs, at room temperature
• ½ cup strong coffee (or water)
• ½ cup whole or low-fat milk
• 10 ounces bittersweet or semisweet chocolate, coarsely chopped
• ½ cup water (or cream)
• ¾ cup (1½ sticks) unsalted butter