Step 1

Pour the oil into a large casserole and add 1 slice salt pork (or 3 slices bacon). Add the diced carrots and cover them with one-third of the sliced beef in a single layer. Sprinkle with salt and pepper. Sprinkle the meat with half the onions, garlic, shallots, and mushrooms. Cover with a layer of half the remaining beef and sprinkle with more salt and pepper. Add the remaining onions, garlic, shallots, and mushrooms and cover with a final layer of the remaining beef. Top with the second slice of salt pork (or remaining 3 slices of bacon). Pour the Burgundy and Cognac over all. Season with additional salt and pepper.

Step 2

Place the casserole over high heat, and when it begins to simmer, cover and lower the heat. Cook for 2 to 2 1/2 hours, or until the meat is tender when tested with a fork.