Preheat oven to 350° F. and then line baking sheets with parchment paper.
Using a large bowl, combine flour, baking powder, baking soda, and salt. Use whisk to combine thoroughly.
Using an electric stand mixer, beat butter until light and fluffy for about 3 minutes. Add sugar, vanilla, and eggs, making sure to between each ingredient.
Slowly add dry ingredients to wet ones. Stir to combine. Add Chocolate Chips and crushed peppermint and then mix on low until well combined.
Refrigerate dough for a minimum of 30 minutes, covered.
Scoop batter into 1-inch balls and place t on prepared baking sheet about two inches apart.
Bake for approximately 18 to 20 minutes or until cookies are ghtly brown on the edges.
Cool on a baking sheet and then remove parchment paper to a cooling rack. Allow to cool completely and then store in air-tight container.
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Notes
Ovens vary in temperature and other variables. Monitor and adjust baking times to suit your individual oven.