Preheat oven to 450 degrees. Sift flour into medium bowl. This is not required if you don’t have a sifter, but it makes the biscuits lighter.
Add the baking powder, sugar, and salt to the bowl. Mix until fully incorporated.
Cut butter into cubes, using a pastry cutter cut butter into pea sized pieces while incorporating it into the flour.
Pour buttermilk into flour mixture. Add in chives and Parmesan. Stir with fork. It will make a loose ball.
Turn onto floured counter. Pat down til 3/4" thick – don’t use rolling pin. Using a biscuit cutter – cut out rounds to the size of your liking.
Place on a baking sheet lined with parchment paper. Bake 10-12 min.