Make a well in the flour mixture, and pour buttermilk into the well.
Fold the buttermilk into the flour mixture VERY GENTLY.
Drop heaping tablespoons of biscuit dough into a well-oiled 10” cast-iron skillet on grill starting around the outside edge and working your way toward the middle.
Let dough rise 5-10 minutes. Place thin pats of butter (not margarine) on top of each biscuit.
Grill for 12-14 minutes.
Once done, brown the biscuits under a broiler for 30-60 seconds.
