Grate the butter into the flour mixture and gently combine with a fork until the mixture resembles coarse crumbs.
Pour in the buttermilk and gently mix with a fork until it all comes together.
Flour a flat surface and turn out the dough and knead it 10 to 15 times. (Sprinkle on some flour if you need to so it will come together in a ball so it's less sticky.)
Roll out dough to 1/3 to 1/2 inch thick and use a biscuit cutter to cut medium to small circles.
Place in a cast iron skillet or on a baking sheet and bake for approximately 10 minutes, or until golden brown on top.
Remove from oven and immediately brush on melted butter.
Cover with towel to keep warm
I use frozen salted butter and a very coarse cheese grater. * If you use salted butter instead of unsalted butter, decrease the amount of salt you add. A standard pastry blender can be used instead of the cheese grater