ECONBIO ROOTS Raisins are simply dried grapes.These shriveled, bite-sized morsels of sweetness offer a healthy snack and burst of energy. Turkey produces the most raisins, followed by California. It is the top dried fruit eaten in the U.S., and they're popular globally as well. Raisins are a delicious ingredient used in a variety of foods, from sweet bread and desserts to savory dishes found in cuisines throughout the world. While you might need to plump raisins up before adding them to a dish, they're one of the easiest dried fruits to prepare.