Prepare cupcakes in a cupcake pan according to the directions on the package. Allow to cool fully.
Frost cooled cupcakes with chocolate frosting.
Break a pretzel twist in half to get a curved pretzel. Gently push a pair into the top of each cupcake to make antlers.
Place two candy eyes on the cupcake.
Below the eyes, place a red M&M candy for a nose.
Notes
Store in an airtight container at room temperature until serving. Best served the same day. If making ahead, wait to decorate the cupcakes until just before serving.