also known as — Les Petites Gourmettes

Ingredients

• 1 cup stout (such as Guinness)
• 1 cup (2 sticks) unsalted butter, room temperature
• 3/4 cup cocoa powder
• 2 cups flour
• 2 cups sugar
• 1 1/2 teaspoons baking soda
• 3/4 teaspoon salt
• 2 eggs
• 2/3 cup sour cream
• 2/3 cup heavy cream
• 8-ounces bittersweet chocolate, chopped
• 2 tablespoons unsalted butter, room temperature
• 1 tablespoon premium Irish whiskey (such as Jameson)
• 3/4 cup (1 1/2 sticks) unsalted butter, room temperature
• 5 1/2 to 6 cups powdered sugar
• 5 to 6 tablespoons Bailey’s Irish cream