The caperberry is the flower bud of Capparis Spinosa, a Mediterranean shrub, cultivated for its buds. The caperberry resembles a large grape with white stripes, or actually more like a teeny tiny watermelon. It has a much less intense flavor than a caper. They are preserved in water, vinegar, and salt. The caperberry can be eaten like an olive. In fact, it can make an interesting alternative in a martini. Use these crunchy, mildly, tangy caperberries in salads, antipasto, or tapas.