Preheat oven to 450 degrees(F). Sift dry ingredients. Then cut in butter with pastry blender or use your hands. Make a well in the middle, pour in buttermilk, and using a fork lightly mix until flour is moistened thoroughly. On floured surface, knead 3 times. Pat dough out until 1/2 inch thick or thicker if you like. Cut into rounds with an inverted drinking glass or a biscuit cutter. Set biscuits into a greased pan so that their edges touch. Bake 12-15 minutes at 450 degrees.