- Rinse the sardines under cold water, place in a shallow non-metallic bowl and season.
- Mix together the garlic, fennel, oil, zest and juice of the limes and thyme leaves. Rub the marinade over the sardines, cover and marinate for at least and hour.
- Preheat the barbecue or grill.
- Barbecue or grill the sardines for 3 minutes on each side, turning once. The skin of the sardines should be brown and crispy.
Serve the sardines with roasted tomatoes and plenty of crusty bread.