Homemade Thin Mint Cookies

Heres exactly how to make homemade thin mint cookies using a simple fromscratch cookie dough recipe with cocoa powder real chocolate and peppermint. Try them cold or out of the freezertheyre incredible!
Ingredients
34 cup 12 Tbsp 170g unsalted butter softened to room temperature
1 cup 200g granulated sugar
1 large egg at room temperature
1 teaspoon pure vanilla extract
14 teaspoon peppermint extract
1 and 12 cups 188g allpurpose flour spooned leveled
34 cup 62g unsweetened natural cocoa powder or dutch process
1 teaspoon baking powder
18 teaspoon salt
Topping
14 ounces 395g quality semisweet chocolate coarsely chopped
12 teaspoon canola or vegetable oil
14 teaspoon peppermint extract
Instructions
Make the cookies In a large bowl using a handheld mixer or stand mixer fitted with a paddle attachment beat the butter for 1 minute on medium speed until completely smooth and creamy. Add the granulated sugar and beat on medium high speed until fluffy and light in color. Beat in the egg vanilla extract and peppermint extract on high speed. Scrape down the sides and bottom of the bowl as needed.
Sift the flour and cocoa powder together in a medium bowl. Whisk in the baking powder and salt until combined. On low speed slowly mix into the wet ingredients until combined.
Divide the dough into 2 equal parts. Roll each portion out onto a piece of parchment to about 14 thickness. Stack the pieces with parchment paper between onto a baking sheet and refrigerate for at least 1 hour. Chilling is mandatory. If chilling for more than a couple hours cover the top dough piece with a single piece