Mix the dry ingredients. Preheat the oven to 350°F (175°C). In a mixing bowl, stir together the almond flour, tapioca flour, coconut sugar, cacao powder, baking soda, and salt.
Add the wet ingredients. Add the melted butter, peppermint extract and vanilla extract. Use your hands to mix it together to form a thick dough.
Cut the cookies. Form the dough into a large ball and place it between two pieces of parchment paper. Press it a bit flat with your hands, then roll it out with a rolling pin until it's about ¼-inch thick. Remove the top parchment paper and use a 1 ½-inch cookie cutter to cut rounds out of the dough. Gather leftover cookie dough and repeat this process.
Bake the cookies. Place the cookies on a parchment-lined baking sheet and bake for 8 to 10 minutes, until firm and dry. Let the cookies cool completely.
Make the glaze. Add the chocolate chips and coconut oil to a glass bowl and melt in the microwave in 20 second increments, stirring in between. Alternatively, you could use a double-boiler. Once the chocolate is fully melted and smooth, stir in the peppermint extract.
Dip the cookies. Dip each cookie into the melted chocolate to fully coat. Use a fork to remove the cookie, shaking or scraping off any excess chocolate as needed, and place back on the parchment-lined baking sheet.
Chill. Transfer the baking sheet of cookies to the fridge and let them harden and set, about 10 to 15 minutes. Then enjoy!