Step 1Tie the bay leaves, juniper berries, caraway seeds, peppercorns, coriander seeds, cloves and thyme into a square of cheesecloth to make a sachet.
Step 2Heat a large skillet and add the onion slices. Cook on low heat until the onions are translucent but not caramelized, about 6 minutes.
Step 3Press out the water from the sauerkraut and add the sauerkraut to the onions. Add the wine and the sachet. Cover with parchment paper or a lid and simmer for 2 1/2 hours. Discard the sachet. Makes 12 cups.
Step 1Whisk together the dry mustard and water. Let stand for 15 minutes.
Step 2Place the mixture over a pot of simmering water and gently warm for about 1 minute (do not boil). Remove from heat and add the vinegar and honey to taste.
Step 1Secure the bay leaf on the onion with the 2 cloves. Put the stock and bacon in a very large stockpot, add the onion and bring to a boil. Reduce the temperature and simmer, skimming occasionally, until the bacon is very tender, about 2 hours.
Step 2Add the potatoes during the last part of the cooking and cook until tender. Remove the potatoes from the pot using a slotted spoon.
Step 3Add the heaviest sausages to the pot, then return the potatoes to the pot and add the remaining sausages. Bring the stock to a boil, then immediately reduce the heat to a low simmer and simmer the sausages for about 15 minutes.
Step 4To serve, remove the sausages, potatoes and bacon from the stock. Reserve the stock for another use. Place the hot sauerkraut and potatoes in the center of a serving plate. Lay the sausages over the top. Thinly slice the bacon and add to the platter. Serve with mustard.