Soak rolls in cold water. Peel and finely chop the onion. Knead minced meat, squeezed out roll, onion, egg and mustard. Season with salt, pepper and paprika. Form 8 meatballs from the minced meat mixture. Place the Rösti corners on a baking tray lined with baking paper.
Bake in a preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 20 minutes. Heat the oil in a pan and fry the friccakes for approx. 8 minutes on each side. Clean and wash the spring onions and cut them into fine rings. Wash and clean the mushrooms. Finely dice the bacon, leave it crispy in a pot and take it out. Fry mushrooms and spring onions in bacon fat and season. Mix sauce powder and 1/4 liter cold water. Deglaze the mushroom mixture with it. Bring to the boil while stirring and let it boil over low heat for about 1 minute. Add bacon. Arrange rösti corners and meatballs on a plate.
Fry mushrooms and spring onions in bacon fat and season. Mix sauce powder and 1/4 liter cold water. Deglaze the mushroom mixture with it. Bring to the boil while stirring and let it boil over low heat for about 1 minute. Add bacon. Arrange rösti corners and meatballs on a plate. Pour some chanterelle sauce over the meatballs. Garnish as you like with parsley and tomato rose