Jewish penicillin with matzo balls (knaidlach) - 9Kitchen

Ingredients

• 1-2 chicken carcasses
• 400g chicken necks
• 400g chicken giblets
• 2 onions, roughly chopped
• 2 carrots, roughly chopped
• 2 leeks, white part only, washed and roughly chopped
• 2 stalks celery, including leaves, roughly chopped
• ½ bunch parsley stalks, reserve leaves for garnish
• 8-10 white peppercorns
• sea salt
• 4-5 litres cold water
• chopped parsley leaves, to garnish
• 1-2 tablespoons schmaltz (rendered chicken fat) or olive oil
• 1 medium size onion, chopped finely
• 2 eggs, separated
• 1 cup matzo meal
• ½ cup ginger ale or ginger beer
• 2 tablespoons finely chopped parsley
• sea salt and white pepper