Allow the cupcakes to cool completely.
Separate one-quarter of the white icing into a piping bag.
Place the remaining icing in a bowl.
Add blue food coloring and stir to combine.
Spread the blue food coloring in an even layer over the cooled cupcakes.
Decorate the cupcakes with the white icing, creating a border around the edge of the cookies and adding a V in the center.
