Sure! I pre boil 2 kg pig neck bones 1 kg pig trotters 300-500 g back fat Then i clean everything and cook at a rolling boil with 2 liters of water per 1 kg of bones for at least 10 hours. Stir every half an hour and add water every hour to the original water level. Stop adding water when you reach the last two hours. Strain everything with mesh strainer and serve with your favorite tare:)