Delicious when spread thinly on toast, the Marmite Yeast Extract is a 100 percent vegetarian product and a good source of B vitamins. This Yeast Spread is a versatile spread that can also be used in stews, gravies and soups for a unique and distinctive flavor. Try this yeast extract bread on some crispbread with a bit of cottage cheese or cream cheese for a great-tasting snack.