Use regular root beer for the best results. Yes, you can make cupcakes with the same batter. Line a muffin tin with paper liners and fill each about ⅔ full with batter. Bake at 350°F (175°C) for 18-22 ...
[Paul] is sick and tired of his homemade root beer being flat. He analyzed the problem with his carbonation techniques and ended up with a method of force carbonating beverages using dry ice.