Name: Hot Fudge Root Beer Float Cupcakes.
Yield: 12 cupcakes
Ingredients: 1 1/8 cups all purpose flour; 1/4 cup dark cocoa powder; 1 1/4 teaspoon baking soda; 1/2 teaspoon salt; 3/4 cup brown sugar; 1 egg; 1 teaspoon vanilla extract; 2 teaspoons root beer concentrate; 1/3 cup root beer; 1/2 cup + 1 tablespoon heavy cream; 1/2 cup butter, (melted); 2 tablespoons sour cream; 1 1/2 sticks butter, (softened); 4 cups powdered sugar; 1 tablespoon vanilla extract; 2 tablespoons milk; 1/4 teaspoon root beer concentrate