Preheat oven to 425 degrees F.
Add dry ingredients in a stand mixer fitted with a paddle attachment. Add the Crisco and mix until mixture resembles coarse crumbs. While mixer is still running, pour in the buttermilk and mix until a soft dough forms.
Place the dough on a lightly floured surface and sprinkle additional flour on top of the dough. Using a biscuit cutter or a cup, flour the rim and and cut biscuit dough. Place the biscuits 2-inches apart on the cookie sheet.
Bake for 10 minutes, then remove the biscuits from the oven and brush with with melted butter. Bake for an additional 2-4 minutes until golden and cooked through.