Bring 1/2 litre of water, bay leaves and juniper berries to the boil. Add the knuckle of pork, cover and cook over a low heat for about 2 hours. Peel and slice the onions.
Add the onions and sauerkraut to the knuckle of pork after 1 hour cooking time and continue cooking. For the puree, bring 1/2 litre of water to the boil, remove from the heat and stir in the pea puree. Leave to swell and stir vigorously again.
Season with pepper and keep warm. Season sauerkraut with salt, pepper and applesauce. Wash parsley, dab dry and chop finely, except for a little to garnish. Arrange knuckle of pork and sauerkraut on a plate.
Sprinkle with parsley and serve garnished with a bouquet of herbs. Serve with pea puree extra. Medium hot mustard tastes good with it.