Preheat oven & prepare cupcakes to directions listed on the box
Once your cupcakes have baked, remove from oven & let cool on a wire rack while you make the frosting.
Frosting
In a mixer with a paddle attachment cream butter until light & fluffy
Add in confectioners sugar & beat slowly
Once mixture looks moist but crumbly add in nog & beat until fluffy again - if you want it a little softer add additional nog if needed 1-2 tsp at a time
Add to your piping bag & swirl on your cupcakes
*Sprinkle on some cinnamon to make them extra pretty