Cockles are small, edible bivalve mollusks found in sandy or muddy coastal areas. They have a rounded, heart-like shape and are typically found buried in the sand. Cockles are popular in various cuisines around the world and are often harvested for their sweet, briny flavor. These shellfish are rich in protein, vitamins, and minerals, making them a nutritious food choice. Cockles can be prepared in many ways, including steaming, boiling, or adding them to soups and stews. They are often enjoyed fresh, but can also be preserved through methods like pickling or canning.