You can utilize quince in jams, jellies, and puddings, as well as used in a similar way to pears as a side dish or a breakfast food. Different countries use quince in different ways, often using the juice as a flavoring agent. However, the real benefit of quince is eating the skin and the fleshy fruit, since it is packed with beneficial nutrients, including vitamins, minerals, phenolic compounds, antioxidants, and dietary fiber.