A little fine tuning and one secret ingredient-fried capers-sets this tuna melt apart from others. Make sure to keep the tuna melt under the broiler long enough for the cheese to get slightly browned and crispy on top. Crispy capers are simply capers quickly fried in olive oil. They have a slightly crispy texture and addictive salty flavor. Crispy capers are also delicious tossed into pasta and served over pork chops. Capers are the flower bud on a bush native to the mediterranean. The buds are sun-dried then pickled in vinegar brine. Capers are usually quite small, but stemmed caperberries are as large as an olive. It is often recommended that capers are rinsed before eating because they are so salty.