- In a glass baking dish, whisk together the garlic, white wine, lemon juice, soy sauce, olive oil, seasoning of choice, salt and pepper.
- Place swordfish steaks into the marinade, and refrigerate for 1 hour, turning frequently.
- Preheat barbecue for high heat, and lightly oil grill hotplate.
- Barbecue swordfish steaks for 5 to 6 minutes on each side.
- Garnish with optional parsley and lemon wedges.
- Note: Allow at least an hour for the swordfish steaks to marinate.