Preheat oven to 450 degrees. First, grease whatever you plan on baking the biscuits in. I use either a cast iron skillet or pie plate with two tablespoons of butter. Then in a large bowl mix flour, baking soda and powder, and salt. Working quickly, grate one stick of butter into a small bowl. Should the butter starts to soften re-chill in either the refrigerator or freezer for a few minutes. Add cold butter to flour mixture using either a pastry cutter or fork cut butter into flour mixture. Pour in cold buttermilk and mix with wooden spoon until the mixture comes together. You may need a little more buttermilk, or you made need a bit more flour.