Preheat oven with a cast iron skillet inside to 450°.
Whisk 2 cups of bread flour, 3 tspn baking powder, and 1 tspn baking soda in a bowl.
Shred 1/2 stick of butter (4 tbsp) and work into the mixture using your fingers until you end up with a gritty, lumpy mix.
Dust your workspace lightly with flour.
Add 1 cup of cold buttermilk to the dry mix. Work it in with your fingers.
Dump mix out onto your floured workspace. Fold the dough over itself multiple times, flipping the dough each time. Use the extra flour to clean your fingers, keep the dough from sticking, and make the dough more workable.
Flatten dough to about an inch. Using a small glass, or biscuit cutter, cut out your biscuits.
Place biscuits in a preheated skillet, cover with a lid and bake at 450° for 5 minutes.
Remove lid, and bake uncovered at 400° for another 10 minutes, or until golden brown on top.
Pull them out, brush with some butter, and enjoy!