Rainbow Cupcakes-Rainbow Cupcake Recipe from Scratch with Frosting

Every year during Christmas time, I love to bake something special for Christmas. Last year it was Black forest cake and meringue cookies, the previous year, it was gingerbread cookies and apple pie, for this Christmas it is colorful rainbow cupcakes with buttercream frosting which I adapted from here and here. It was fun to put together and also it tasted yummy with buttercream frosting. It