Preheat oven to 350°F and line a large baking sheet with parchment paper.
In a large bowl or stand mixer fitted with a paddle attachment, combine all of the ingredients and mix well, scraping down the sides as needed. The dough will be very sticky.
Using a small cookie scoop, scoop out the dough and drop onto the prepared baking sheet about 2 inches apart. If you use a medium cookie scoop, add 1 to 2 minutes to the bake time.
Bake for 8 minutes to start, cookies should have a thin film on top and the batter should no longer be glossy, should still be able to see small ripples of darker batter. DO NOT OVERBAKE THESE COOKIES. They will cook up fast and can try out easily if cooked too long. Every oven is different, so do a few in a test batch to see how long they need.
Remove from oven and allow to cool on pan for a couple of minutes before transferring to a cool rack.
Once cooled, melt the Andes Mints in a glass and dip the cookies halfway in the melted chocolate, place on wax paper and sprinkle with chopped peppermint candies and allow to set. They can also be placed in the fridge for 15 minutes to speed up the setting.