Chocolate Stout Cake with Baileys Irish Cream Cheese Frosting

INGREDIENTS

• :
• 1½ cups stout or dark beer, such as Guinness
• 1½ cups unsalted butter
• 1 cup Dutch-process cocoa powder
• 3 cups all-purpose flour
• 3 cups granulated sugar
• 2¼ teaspoons baking powder
• 1 teaspoon salt
• 3 eggs
• 2/3 cup sour cream
• 16 ounces cream cheese, at room temperature
• ½ cup butter, at room temperature
• 7 tablespoons Baileys Irish Cream
• 6 cups powdered sugar