Using a hand mixer, beat butter, peanut butter, brown sugar and vanilla until combined
Slowly add your flour and baking powder, in batches, mixing in between
Once all of the flour and baking powder have been combined, fold in 1 cup of chocolate chips using a spoon or rubber spatula
Scoop heaping spoonsful of dough and roll them into balls with your hands. Place each ball on a lined baking tray. Slightly press each one until they're about 1/2" thick.Bake at 350 for 13 minutes. Let cool on the tray before transferring them to a cooling rack. Initially, these cookies will be soft, so let them cool completely to set before enjoying.