The thought of a root beer float cupcake may sound strange, but the end results are heavenly, especially when topped with vanilla icing for an extra bit of authenticity. The trick to making them taste like root beer lies in the root beer soda and extract that are in the batter. Yes, an actual cup of root beer goes into these! The rest of the ingredients sound more like cupcake batter — flour, salt and sugar, among others. Bake, frost and top with a straw to add to the appeal.
Source Cupcake Project