Preheat oven to 375 F. Combine flour, baking powder, baking soda, and salt in a bowl; set aside.

Cream butter and sugars. Slowly add in egg and vanilla. Scrape down the sides of your mixer and slowly add the dry ingredients. Fold in chocolate chips and cranberries.

Use a medium cookie scoop (about 2 tablespoons) to drop cookies onto your baking sheet. Do not overcrowd the sheet. Bake for 8-10 minutes (until the edges begin to turn golden brown). Let cool on the baking sheet for 5 minutes before transferring to a cooling rack.