Preheat your oven to 350°F (175°C).
In a large mixing bowl, cream together the softened butter and powdered sugar until light and fluffy.
Add in the peppermint extract and mix until well incorporated.
In a separate bowl, whisk together flour, baking powder, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Fold in the chocolate chips gently until evenly distributed.
Scoop tablespoon-sized portions of dough and roll into balls.
Roll the dough balls in colored sugar before placing them on a baking sheet lined with parchment paper.
Bake for 10-12 minutes or until the edges are slightly golden.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack.