Step by step

Roll up the tail portion; arrange the fillets in an oven tray lined with baking parchment, lightly salt, drizzle with oil and add a sprig of rosemary

Tips
In making your tasty cherry tomato sauce, be very careful to use the right amount of sugar as cherry tomatoes can be, by their very nature, very acidic.
Trivia
The cherry tomato is a native of Sicily and, more specifically, the areas of Pachino, Portopalo, Noto and Ispica.