By now the beans have been cooking 8 to 10 hours. They should be completely soft, the broth thick and dark from the pork fat.
In the cast iron skillet, fry 2 to 3 more strips of bacon until the fat has rendered and the edges are crisping. Pour in the beans along with enough of their broth to fill the skillet about halfway. Add 1 tbsp molasses, stir to combine, and let everything cook together over medium heat for 5 to 8 minutes until the molasses has caramelized slightly into the beans and the broth has thickened. Taste and adjust salt.
For the biscuits: combine flour, baking powder, and salt in a bowl. Add the fat and work it into the flour with your fingers until it resembles coarse crumbs. Add liquid gradually and stir until a soft dough just comes together. Do not overwork. Pat to ¾ inch thick on a floured surface, cut into rounds. Place directly into the skillet alongside the beans if it is large enough, or in a separate greased pan. Bake at 425°F for 12 to 15 minutes until golden. The bacon fat in the skillet will fry the underside of the biscuits slightly, which is correct and good.
Serve the beans in a deep bowl with the biscuits to soak up the broth. Make the final round of coffee using the same method as breakfast.
This is supper. This was always supper. It is very good.