Caper berries or "Fior di Cappero" as known in Italian are a type of edible fruit that comes from the caper plant, which is native to the Mediterranean region. These berries are similar in appearance to olives, but smaller in size and with a unique, tangy flavor that makes them a popular ingredient in many Mediterranean and Middle Eastern dishes. Caper berries grow on the same plant as capers, which are the small, unopened flower buds of the caper plant. The caper berries are the fully matured fruit of the plant, which are picked when they are green and then preserved in a salty brine or vinegar solution. The texture of caper berries is firm and slightly crunchy, with a flavor that is often described as tangy, salty, and slightly sour. This unique flavor profile makes them a popular ingredient in a variety of dishes, including salads, pasta dishes, sauces, and even as a garnish on charcuterie boards.