Triple Chocolate Stout Whoopie Pies Recipe - BettyCrocker.com

Ingredients

• 1 box Betty Crocker™ Super Moist™ Devil's Food Cake Mix
• 1/4 cup unsweetened baking cocoa
• 1 box (4-serving size) chocolate instant pudding and pie filling mix
• 2/3 cup stout beer
• 1/2 cup vegetable oil
• 3 eggs
• 1 jar (7 oz) marshmallow creme (1 1/2 cups)
• 1 cup butter, softened
• 1 1/2 cups powdered sugar
• 2 tablespoons unsweetened baking cocoa
• 1 tablespoon stout beer
• 1/2 teaspoon vanilla