Preheat your oven to 450°F.
Combine 3 cups flour, ½ teaspoon soda, 2 Tablespoons powder, and 1 teaspoon salt in a bowl, or in the bowl of a food processor.
Cut 9 Tablespoons butter into chunks and cut into the flour until it resembles course meal.
If using a food processor, pulse a few times until this consistency is achieved.
Add 1 ½ cups buttermilk and mix JUST until combined.
If it appears on the dry side, add a bit more buttermilk. It should be very wet.
Turn the dough out onto a well-floured board.
Dip your fingers in flour to help keep the dough from sticking to you. Gently, gently PAT (do NOT roll with a rolling pin) the dough out until it's about ½" thick. Fold the dough about 5 times, gently press the dough down to a 1 inch thick.
Use a round cutter to cut into rounds. Do not twist cutter as you push down. This compromises the dough to it doesn't rise up as high.
You can gently knead the scraps together and make a few more.
Place the biscuits on a cookie sheet- if you like soft sides, place them touching each other. If you like"crusty" sides, place them about 1 inch apart- these will not rise as high as the biscuits put close together.
Bake for about8-10 minutes- the biscuits will be a beautiful light golden brown on top and bottom.
Do not overbake.