1 Rehydrate dried porcini mushrooms: If you are using the dried porcini mushrooms, pour 1 cup of boiling water over the them and allow them to rehydrate for 30 minutes. Remove the mushrooms and chop coarsely. Pour the soaking water through a paper towel (to remove any dirt or debris) into a bowl and set aside.
2 Cook the salt pork: In a large sauté pan, pour enough water to cover the bottom by about 1/8 inch. Over medium heat, cook the salt pork in the pan until the water evaporates, stirring occasionally.
Once the water is gone, reduce the heat to medium-low, and continue to cook the salt pork until much of the fat has rendered out of it. Add a tablespoon of butter and continue to cook the salt pork until the pieces are browned and crispy.
Use a slotted spoon to remove the salt pork pieces to a large Dutch oven or other large, thick-bottomed, lidded pot.
3 Sear the beef:…