In the bowl of a stand mixer, beat the butter and sugar for 3-4 mins until light and fluffy with a paddle attachment.
Add in the egg, vanilla, and peppermint extracts. Mix on medium until fully incorporated.
Sift the flour, cocoa powder, salt and baking powder into the bowl.
Mix on low or medium speed until just combined.
Roll the dough out on a sheet of parchment to about ¼ inch thickness.
Cut out circles using a 2-3 inch cutter.
Place in the fridge to chill* for 30 mins while your oven preheats to 350.
Remove from the fridge and bake for 10-12 mins until edges are set (the center will still look soft)
Allow to cool on cookie sheet for 10 min before removing to a cooling rack.
Once cooled, melt the chocolate chips and coconut oil in the microwave, stirring every 30 seconds until fully melted.
Add in the peppermint extract and stir well.
Dip each cookie into the chocolate and use a fork to help lift the cookies from the chocolate.
Place each cookie on a sheet of parchment or wax paper.
After sitting at room temperature for about 15 mins, Add leftover chocolate to a piping bag and squeeze out a chocolate drizzle over top! (This is optional but super cute)
Place in the fridge for 30-45 mins to set