Grate cold butter into a bowl and put in the freezer for half an hour. Place flour in a bowl, add salt and stir. Add butter. Use a pastry cutter until shaggy crumbs are formed. Add buttermilk. Stir just until moistened, do not overmix or they won't be as fluffy.
Roll out into a thick layer and cut out with a round cookie cutter about 1.5 inch thick not twisting, just press straight down.
Spray inside of dutch oven with non stick spray or butter. Lay biscuits at bottom with a bit of space in between, bake at 425 F uncovered for about 12 minutes or until lightly brown on the tops.
Melt a few tbsp of butter and drizzle on top of each one and serve.