Marinate the prawns for 30 minutes in lemon juice, oil and seasoning. 2. Heat butter in a heavy pan. Toss in mustard seeds and chillies. 3. After 15 seconds, stir prawns, garlic, oregano and paprika.

Place the prawns, oil, garlic, salt and pepper in a bowl and toss to combine. Barbecue for 3-4 minutes or until cooked through. Place in a bowl with the butter and parsley leaves and toss to coat.