Stuffed Pig’s Trotter with Lentils

‘The stuffed pig’s trotter or zampone is a speciality of Modena. The skin of the trotter is stuffed with a selection of minced meats, such as ear and cheek, and spices. The stuffed trotters sold by butchers in Italy require more than 2 hours’ cooking time, but you can buy specially packaged products which need to be cooked for only 20 minutes in boiling water. These are available in Italian delicatessens.’