A drupelet is a small, individual segment of a compound fruit, such as those found in raspberries and blackberries. Each drupelet contains a single seed and is surrounded by fleshy tissue, making the entire fruit appear bumpy or aggregate. Drupelets develop from the ovary of a flower and are formed when multiple ovaries fuse together. This structure allows for the unique texture and flavor of aggregate fruits, contributing to their popularity in various culinary uses, from desserts to jams.