2) Combine the honey, wine, garlic, thyme, salt, and pepper in a small bowl and mix well. Brush the vegetables with the honey marinade. Place the vegetables on skewers, if desired.
3) Lightly oil the griddle rack with vegetable oil. Heat the griddle until the coals are somewhat gray with ash; the flame should be low.
4) Place the skewered or loose potatoes, courgette, aubergine, green pepper, red pepper, and onion directly on the greased griddle. Cook the vegetables for about 10 minutes, brushing them with the honey marinade every few minutes and turning them after 5 minutes.