This mall classic, peppered with the ultimate combo of mint and chocolate, is every bit as ridiculous and over the top as it is delicious and irresistible. The secret ingredient in these cookies is the milk powder, which brings an amazing depth of flavor.
2 tablespoons chocolate chips, plus more for the topPreheat the oven to 350°F. Coat the baking sheet and chosen baking pan with baking spray.In a medium bowl, mix the flour, cocoa powder, milk powder, salt, baking powder, and baking soda.In a large bowl, and using a wooden spoon or sturdy rubber spatula, mix the butter and both sugars, flexing your muscles for about 2 minutes, until they are fully combined. Add the egg, mint, and vanilla and stir until combined and fluffy, about 1 minute.
Smoosh your dough into the bottom of the pan. Using your hands, pat the dough down evenly to the edges. Sprinkle some extra cookies and chocolate chips around the inside edge of your ring as decoration. Bake the cookie at 350°F for 18 to 20 minutes. Double-check that you set the timer; because this cookie is already dark brown it’s tricky to tell by sight when it’s ready to take out of the oven.