First things first: preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper or a silicone baking mat. This ensures your cookies don’t stick and makes cleanup a breeze.
In a large bowl, combine the peanut butter, Biscoff cookie butter, sugar, salt, and eggs. Using a hand mixer on medium speed, blend everything until the dough is smooth and well-mixed.
Scoop out small portions of the dough using a tablespoon or a cookie scoop. Place each portion on the baking sheet about 2 inches apart. Gently flatten the tops with the back of a spoon or your fingers—these will be your reindeer faces!
Now for the fun part: press two pretzel halves into the top of each cookie to create reindeer antlers. Don’t worry if they’re a little wonky—it just adds personality!
Pop the cookies into your preheated oven and bake for 8-10 minutes. Keep a close eye on them; you want them soft and slightly underbaked for that chewy texture.
Once out of the oven, press a red M&M into the center of each cookie for the nose. Add two mini chocolate chips above the nose to make those adorable eyes. The warmth will help the candies stick perfectly.
Let the cookies cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely. Once they’ve set, they’re ready to be devoured—or packaged up as the cutest homemade holiday gift!