Preheat oven to 350°F. Line two baking sheets with Silpat mat or parchment paper.
Whisk egg in a bowl. Add in crushed Thin Mints, mix with a spoon until egg fully coats all the cookie crumbs. This will be a little messy. Take 2 tbsp of dough and compact between hands and form a ball. Place onto baking sheet and gently smash down to form a round disk about 1/3 inch thick. Repeat with remaining dough, placing cookies about 2 inches apart.
Bake for 9-10 minutes until cookies are puffed and set. Let cookies cool on tray before removing and eating.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.