01 -
In a bowl, mix together powdered sugar, milk, and mint extract until smooth. If you'd like, you can add a bit of green coloring. Once cookies are fully cooled, add frosting to each one and place them in the freezer to firm up.
02 -
Beat the softened butter and sugar in a bowl until it's light and airy.
03 -
Pour in the vanilla and crack in the egg. Keep beating until everything blends together.
04 -
Gradually fold in the flour, cocoa powder, baking soda, and salt to the wet mix. Combine until you have a uniform dough.
05 -
Shape the dough into little balls and line them up on a parchment-covered baking sheet. Bake at 175°C (350°F) for about 8 to 10 minutes. Let them cool completely before touching.
06 -
Melt the chocolate chips and stir in the vegetable oil using a microwave or double boiler. Spread the melted chocolate on the frosted cookies and let them set before enjoying.