Open a medium hole (starting from the top to the middle -- don't go all the way to the bottom) in the center of each cupcake and fill/pipe in a good amount of marshmallow frosting. Using a star tip or other of your preference, pipe marshmallow frosting on top and decorate FROZEN cupcakes as desired. I used edible sterling pearl blue bell dust on top of the snowflakes, as well as metallic dragees on top of the frosting. WATCH this SHORT VIDEO
to learn how to mold the gumpaste/fondant snowflakes.