Preheat barbecue to a medium heat. 3. https://www.thebetterfish.com/recipe/grilled-barramundi-escabeche On 4 large buttered squares of heavy-duty aluminum foil, place equal amounts of fish. 4. Drizzle with olive oil, dot with butter, season and wrap into a parcel. 1. Place vegetables on a large double sheet of cooking foil and baking paper (paper should be on the foil). Transfer to barbecue and cook … Pour equal amounts over fish. In small saucepan, melt margarine; add lemon juice, parsley, dill weed, salt and pepper. Wrap foil … 2. Sprinkle with paprika; top with onion slices. 5.