Prepare a baking sheet by lining it with parchment paper.

Break the mini pretzels into "C" shapes to create antlers.

In a microwave-safe bowl, melt the chocolate in 30-second intervals, stirring between each round until completely smooth.

Dip each Oreo into the melted chocolate, using a fork to turn it over and coat both sides. Let any excess chocolate drip off, then place the coated Oreo on the baking sheet.

While the chocolate is still soft, press two pretzel pieces at the top of each Oreo for antlers, add two edible eyes below, and place one red M&M as the nose.

Transfer the baking sheet to the freezer for about 10 minutes to set the chocolate.

Once the chocolate has hardened, your festive reindeer Oreos are ready to enjoy!