Capers are the small, unripe flower buds of the caper bush (Capparis spinosa), a plant native to the Mediterranean region. These buds are typically pickled in brine or vinegar, which gives them their distinctive tangy, salty, and slightly floral flavor.
Capers are widely used in Mediterranean cuisine, where they add a bright, briny note to a variety of dishes. Capers are also commonly used in sauces like tartar sauce, dressings, and as a garnish for meats, fish, and salads.
The most prized capers are often the smallest, known as nonpareil capers, which are particularly tender and flavorful.