Onions peel, finely dice. Heat butter in a pan and fry half of the onions in it until translucent. Knead minced meat, egg, breadcrumbs, milk, steamed onions and 1 level teaspoon of salt.
Form small balls (4-5 cm Ø) with moistened hands.
Heat the oil in a pan. Fry half of the balls for 8-10 minutes, turning them all round. Keep the finished balls warm and fry the remaining balls in the same way. Sauté the remaining onions in hot frying fat, season with salt and pepper.
Deglaze with stock and cooking cream, bring to the boil and stir in the sauce thickener. Bring to the boil again briefly. Season to taste with salt and pepper.
Wash the chives, shake dry, cut into fine rings. Stir the chives into the sauce, except for a little bit for sprinkling. Arrange meatballs, sauce and some cranberries on a plate, sprinkle with chives.