A cornichon is a small, tart pickle made from gherkin cucumbers. These cucumbers are typically harvested when they are about 1 to 3 inches long. Cornichons are often pickled in a vinegar brine with various spices, giving them a distinct flavor that is both sour and slightly sweet. They are commonly used in French cuisine. Cornichons are frequently served as a condiment alongside charcuterie boards, pâtés, and cheeses. They can also be chopped and added to sauces or salads for an extra crunch. Their unique taste complements many dishes, making them a popular choice in gourmet cooking.