In a large Dutch oven or pot (the larger the better!), place the potatoes in a single layer on the bottom of the cooking vessel. Sprinkle the onions over the potatoes.
Place the beef in a single layer on top with the marrow bones and whole cloves of garlic tucked within the meat. Sprinkle with a layer of barley.
Place a layer of borlotti beans, then sprinkle with the black pepper. If using the eggs nestle them into the dish now.
In a large bowl whisk together the chicken broth, salt, paprika, turmeric, cumin, and cayenne.
Pour the chicken broth mixture over the layered ingredients, and add more water if needed to make sure that the they are all just covered.
Cook in a smoker for 12 to 16 hours at 200 to 250 degrees F (93 to 120 degrees C).