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Sift the flour, baking soda, baking powder, and salt together into a large mixing bowl. Set off to the side.
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Add the butter and sugars to the bowl of an electric stand mixer fitted with the paddle attachment. Cream together until light and fluffy. Add the egg and vanilla extract, mix until combined.
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Add the dry ingredients to the mixer bowl. Mix on low until just about combined. Add in the mint and chocolate and mix until combined and no more flour is visible.
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Scoop out about 3 tablespoon balls of dough on to a large baking sheet lined with parchment paper. Gently press down on the top of each dough ball to slightly flatten. Once all the dough is portioned out, chill the baking sheet in the fridge for at least an hour.
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Preheat the oven to 350 degrees F.
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Arrange about six cookies on a parchment lined baking sheet and bake for 15 minutes. Let the cookies cool for 10 minutes on the pan and then transfer to a wire rack to completely cool.