These taste best freshly fried, but if you must cook them in advance, reheat them for about five minutes in an oven preheated to 180°C (350°F). The shrimp toast ... but not slicing so deep ...

Shrimp toast—umami-packed shrimp paste spread thick on white bread that’s deep-fried and sprinkled with ... made with confit shrimp heads (waste not, want not) and sprinkled with chives.