Retro prawn cocktail

Prawns and lettuce

• 250 g water
• 300 g unpeeled, large raw prawns, deshelled, deveined
• sea salt, to season
• ground black pepper, to season

Marie rose sauce

• 300 g grapeseed oil
• 2 eggs
• 2 tbsp tomato sauce
• 2 tsp Worcestershire sauce (see Tips)
• 2 pinches paprika
• 1 tbsp lemon juice, to taste
• 4 dashes Tabasco® sauce
• 2 pinches ground black pepper
• ½ tsp sea salt
• ½ iceberg lettuce, finely shredded
• 1 lemon, cut into 4 wedges