Cranberries are small, bright-red berries native to North America, prized for their sharp, tart flavor and firm, juicy flesh. Because they are quite sour, they’re often sweetened or dried and used in sauces, baked goods, drinks, and savory dishes around the world. In the United States and Canada, cranberry sauce is a familiar part of Thanksgiving meals, and Indigenous peoples traditionally used cranberries as food and medicine.