- 8 medium sweet potatoes (5 lb), left unpeeled, halved lengthwise and cut crosswise into 2-inch pieces
- 2 navel oranges, left unpeeled, thinly sliced
- 2 large red onions, peeled and trimmed (leaving root ends intact) and cut into 1/2-inch-thick wedges
- 1 stick (1/2 cup) unsalted butter, melted
- 1/4 cup olive oil
- 1 cup golden raisins
- 1/3 cup honey
- 1/3 cup fresh lemon juice
- 1/4 cup chopped fresh parsley
- Special equipment: heavy-duty foil
- Prepare grill for cooking.
- Toss together sweet potatoes, oranges, onions, butter, oil, and salt and pepper to taste.
- Put a 2-foot-long double layer of foil on a work surface. Place half of sweet potato mixture in center and sprinkle with 1/2 cup raisins. Cover with a third sheet of foil and tightly roll up all sides to seal. Wrap packet in a fourth sheet of foil to ensure insulation. Make another packet with remaining vegetables and raisins.
- Put packets side by side directly on hot coals. Cover grill and open grill vents, then grill packets until vegetables are tender, about 30 minutes.
- While packets are grilling, stir together honey, lemon juice, and parsley. Remove packets from grill and carefully unwrap. Drizzle vegetables with honey mixture.