I have a special place in my heart for ham hocks. Certainly, not the most attractive ingredient to hold a fondness for, but I put it down to my inner cheapskate. I love the idea that for very little money you can produce something delicious. This ham hock recipe doesn't use gelatin, but if you prefer a firmer setting you could add a leaf of gelatin to the cooking liquid once the ham hocks are cooked. You can also make the terrine in individual Kilner jars to serve.