1. Put all the ingredients in a large pot and just cover with water.
2. Bring to a boil, uncovered, then turn down, cover the pot and let simmer for hours, or until the meat falls of the bone. Skim any foam that appears.
3. Strain liquid into a large bowl and remove the meat from the hocks. Shred or dice the beef and pork.
4. Put the strained liquid and meat back on the stove and boil until the liquid shrinks 1 inch.
5. Pour into moulds (I used a tray of 8 mini loaf pans and still had some left over, which I just poured into a dish).
6. Put in the 'fridge until set. Any fat will rise and can be easily scraped off when set. There is so much gelatin in the feet that it sets up quite quickly.