In a medium mixing bowl, stir together the almond flour, coconut flour, cocoa powder, baking soda and salt. Set aside.
3/4 cup (75 grams) finely ground blanched almond flour, 1/4 cup (32 grams) coconut flour, 1/3 cup + 4 teaspoons (48 grams) Dutch-process cocoa powder, 1 teaspoon baking soda, 1/4 teaspoon salt
In a large mixing bowl with an electric hand mixer or using a stand mixer, beat together the fat and sugar at medium speed until well combined, about 1 minute. If you use coconut oil, it may not come together easily. If that's the case, use your hands to combine it and then beat another 20 seconds.
7 tablespoons (98 grams) coconut oil, 3/4 cup (150 grams) coconut sugar
Beat in the almond butter and peppermint extract on medium speed and mix until combined. Beat in the egg on low and mix until well incorporated. Stir in the flour mixture until well combined. Then stir in 1 cup (170 grams - ignore the quantity below - it's a technical issue I can't fix) and reserve the remaining 1/4 cup to place on top of the rolled dough balls.
6 tablespoons (98 grams) natural almond butter, 1 1/2 teaspoons peppermint extract, 1 large egg, 1 1/4 cups (213 grams) semi-sweet chocolate chips
If you want to make cookie muffins: Preheat the oven to 350 °F (175 °C) and line a muffin pan with 12 liners. Scoop 1/4 cup (58 grams) of dough into each cup. Press down slightly, cover with remaining chocolate chips (ignore the quantity below - it's a technical issue I can't fix), and bake for 12 minutes or until the top no longer appears wet. Let cool at least 20 minutes in the pan. Store in an airtight container for up to 3 days.
If you want to make them in cookie form: Place the bowl in the refrigerator for about 1 hour or until the dough is firm. Preheat the oven to 350 °F (175 °C) and line a baking sheet with a piece of parchment paper. Roll the dough into 8 (93-gram) balls and place the chocolate chips on the top and on the sides of the dough balls. Place 3" apart on the prepared baking sheet. Press the cookies down lightly with the palm of your hand. Bake for 11-14 minutes (if using coconut sugar) or 12-15 minutes (if using brown sugar) or until the surface of the center of the cookies no longer appears wet. They'll be very soft but will continue to cook as they sit on the cookie sheet. Let cool completely on the baking sheet. Store in an airtight container for up to 3 days.