Greek Yogurt Chocolate Cake

Bahan-bahan (10 porsi)

• 1 cup (2 sticks) unsalted butter, plus more for the pan
• 1/3 cup cocoa powder
• 1 teaspoon instant espresso powder
• 1 teaspoon kosher salt
• 1 cup water
• 2 cups all-purpose flour, plus more for the pan
• 1 3/4 cups sugar
• 1 1/2 teaspoons baking soda
• 2 large eggs
• 1/2 cup plain Greek yogurt (I used 2% fat)
• 2 teaspoons pure vanilla extract
• 2 tablespoons butter
• 1/4 cup milk
• 6 ounces bittersweet or dark chocolate, finely chopped