Heat the oil in a large pan set over a medium heat. Add the Parma ham and fry for 5 minutes, until the fat has rendered
Stir in the garlic, celery, carrot and onion and cook until soft, about ten minutes, stirring often
Next, add the drained chickpeas and the chopped tomatoes. Cover with stock and place a lid on top. Simmer for about 40 minutes, or until the chickpeas are very tender and the soup has come to the desired thickness
Taste and season. Stir in the spinach of baby chard and allow them to wilt, about 2 minutes. Remove from the heat and serve with a swirl of extra virgin olive oil and black pepper to taste
