I've just made the most delicious ribollita, the classic Italian soup with as nourishing a list of ingredients as you could hope to find. With its dark kale, tomatoes and beans, it's a real meal in a bowl. Whenever I make this dish, which I think the word 'soup' undersells, it rekindles happy memories of holidays spent in Tuscany when my daughter Maya was young. There was nothing more idyllic than coming home from the…