Peel 1 onion, dice finely. Knead with 600 g mixed mince, 1 egg (size M), 3 tbsp. breadcrumbs and 1 tbsp. medium hot mustard. Season with 1 tsp salt and 1⁄2 tsp pepper. Form 4 large meatballs from the minced meat mixture.
Peel onions and cut them into rings. Preheat oven (electric cooker: 200 °C/circulating air: 180 °C/gas: see manufacturer). Fry the meatballs in 2 tbsp. oil for approx. 10 minutes. Remove the rind from the camembert, dice and mix with mozzarella. Put the meatballs in an ovenproof dish, sprinkle cheese on top. Bake in the oven for 8-10 minutes.
Fry the bacon in 1 tablespoon of oil until crispy, remove. Fry onions in bacon fat. Add whiskey slowly. Season with salt, pepper and 1 tablespoon sugar. Simmer for about 5 minutes.
Wash the parsley and chop finely. Arrange the meatballs with salsa, onions, bacon and parsley.