Serving and storage: Caponata is best served the next day, so the ingredients and flavors have time to meld. Top with chopped flat leaf parsley or fresh mint. It also makes a nice topping for crostini: Pile it atop grilled bread that’s been brushed with olive oil before grilling, or let the bread cool and smear it with fresh ricotta or another spreadable cheese, then top with caponata. Fabrizia serves it with quartered hard-boiled eggs.