In a medium bowl, combine yeast and warm water; let stand for 10 minutes.
Stir in honey, oil, and buttermilk.
Combine flour, baking soda, baking powder, and salt in a large bowl. Add wet ingredients and stir together to form a ball. Turn out onto a floured work surface and knead lightly for 2 minutes.
Roll dough to ½ inch thick and cut into 2-inch-round biscuits.
Place a 2- or 3-inch-deep cast-iron skillet with a lid, or a Dutch oven with a lid, in the fire separately until they’re hot but not red. Grease the bottom of the skillet or oven with lard, butter, or cooking spray, and sprinkle with a bit of flour. Place biscuits inside, touching, and brush the tops with fat, butter, or oil. Cover.
Rake out a thin bed of coals and set the skillet or oven on coals. Cover the lid with a thick layer of coals.
Bake in the fire for 10 to 15 minutes, checking for doneness after 7 minutes.
The biscuits can alternatively be baked, uncovered, in a conventional oven at 450°F for 12 to 15 minutes.