Vanilla Marshmallow Filled Cupcakes

"Marshmallow Filled Cupcakes are moist cupcakes with a creamy marshmallow filling in the center of the cupcake. This cupcake recipe uses a box cake mix, so they’re quick and easy to make. It will be one of your favorite cupcake recipes. Marshmallow Filled Cupcakes are like those delicious Hostess cupcakes, but better because you make them at home with a box cake mix. You can add as much filling and frosting as you want, and you can decorate them any way you like."