For the apple sauce, peel and finely dice the onions. Peel, core and dice apples. Apples, 2⁄3 Boil onions, 2 tbsp. mustard, juniper, sugar and vinegar while stirring. Simmer at low heat for 15-20 minutes.
Stir from time to time.
For the puree, peel and wash the potatoes, cover and cook in salted water for about 20 minutes.
For the meatballs, wash and chop the marjoram. Knead minced meat, egg, breadcrumbs, marjoram, rest of onion cubes and 1 tablespoon of mustard. Season with salt and pepper. Shape 8-12 meatballs with moistened hands.
Heat the oil in a pan. Fry the meatballs for about 4 minutes on each side.
Drain the potatoes. Add milk and butter and mash everything finely. Season the puree with salt and nutmeg. Serve the meatballs with puree and apple sauce.