Wash the chicken giblets or chicken. Bring to the boil with the spice ingredients and about 3 litres of water. Simmer at low heat for about 2 hours. Skim from time to time.
Clean or peel, wash and chop the greens. Halve onions with skin. Add everything to the stock after about 1 hour. Let the stock soak through and season mildly with some salt and pepper. (Use chicken meat for other purposes or serve it with the fondue).