How to Make It
Light a grill. In a bowl, mix the 1 tablespoon of oil with the onion, garlic, wine, lime juice and parsley. Season the shrimp with salt and pepper and add to the bowl; rub with the marinade and let stand for 15 minutes.
Thread the shrimp onto 4 skewers and rub the butter all over the shrimp. Oil the grate. Grill the shrimp over moderate heat, basting with the marinade and turning, until just cooked through, 7 minutes. Serve with steamed rice.