I am incapable of throwing anything away in the kitchen. In my fridge, there must be at least half a dozen pots of bits and bobs, dishes of leftovers and scraps. In my freezer, a bag of parmesan rinds has filled slowly, each intended to be chucked into a pot of soup or stew to bring savoury depth, and there’s even an optimistic box of pea pods that I’m convinced I will one day turn into a stock to make an authentic risi e bisi.