Preheat oven to 170C and line an oven tray with baking paper.
Place cherry tomatoes on prepared tray, drizzle with oil and vinegar.
Sprinkle with brown sugar.
Season generously with sea salt and freshly ground black pepper.
Roast for 30-35 minutes, until tomatoes are tender and skins burst.
Sprinkle with basil, sea salt & freshly ground pepper.