Named for their hard central pit encasing the seed, stone fruits include peaches, plums, nectarines, cherries and apricots, along with fun hybrids like nectacots (nectarine + apricot), pluots (plum + apricot) and more. These sweet, juicy fruits—also known as drupes—are an excellent source of vitamins A and C, and work beautifully in recipes sweet or savory, fresh, frozen or cooked.