Combine Flour, baking powder, salt and butter in a mixer and mix until crumbly. Add the buttermilk and mix until the dough holds together.
Do not over-mix. Turn out on a floured surface and roll the dough out to a 3/4-inch thickness. Cut into rounds or squares. Place fairly close together on an ungreased cookie sheet and bake in preheated 450F oven for 12 to 15 minutes.
