Put a pot of water on to heat. When the water starts to boil add salt and the cabbage, which you have washed and cut up. Peel the potatoes and add them to the pot, allow to boil for about twenty-five minutes until it is all cooked. Drain well. Put the cabbage and potatoes in a dish and mash them with a masher until they are well mixed. In a frying pan, fry the peeled cloves of garlic in a little oil and a little lard and when they are golden, remove them. Then add the belly of pork, fry it until it is well done. Keep it to one side. Put a bit of this oil into the dish with the cabbage and potatoes and stir well. In the frying pan where you have fried the belly of pork, and with the remaining fat, add everything there is in the dish, making an omelette shape, and brown it on both sides. When it is ready, serve it straight away with the slices of belly of pork on top.