This definitive Delia Smith Prawn Cocktail Recipe elevates the retro classic by insisting on large, shell-on prawns dry-fried to vibrant pink perfection. Served atop a bed of shredded Cos lettuce, peppery rocket, and diced avocado, the prawns are draped in a piquant, homemade Marie Rose sauce spiked with Tabasco and Worcestershire. It is the ultimate sophisticated starter, proving that when made with fresh ingredients, this nostalgic dish is timelessly delicious.
Jump to RecipeDelia Smith Prawn Cocktail Ingredients
The Seafood & Salad:
- 2 lb (900 g) Large Prawns: In their shells (raw or cooked). Cooking them yourself offers superior texture and flavor.
- 1 Crisp-hearted Lettuce: Such as Cos or Little Gem, for the essential crunch.
- 1 oz (25 g) Rocket Leaves: Adds a modern peppery bite.
- 1 Ripe Avocado: Firm but yielding; adds a creamy textural contrast.
- Garnish: 1 whole Lime (cut into wedges) and Cayenne Pepper for dusting.
The Cocktail Sauce (Marie Rose):
- 1 quantity Mayonnaise: Homemade is best, but a high-quality jarred mayo works.
- 2 tablespoons Tomato Ketchup: Provides the pink hue and sweetness; organic is preferred.
- 1 dessertspoon Worcestershire Sauce: For savory depth.
- 1 dessertspoon Lime Juice: Cuts through the richness.
- A few drops Tabasco Sauce: Essential heat.

How To Make Delia Smith Prawn Cocktail
- Prep the Prawns: If using raw prawns, heat a large solid frying pan or wok. Dry-fry the prawns in their shells for 4–5 minutes until they turn from grey to a vibrant pink. If using frozen, defrost thoroughly first.
- Peel and Devein: Once cool enough to handle, reserve 6 impressive-looking prawns in their shells for garnish. Peel the rest. Use a small sharp knife to make a shallow cut along the back of each peeled prawn and pull out the black thread (digestive tract). Chill the peeled prawns in the fridge until needed.
- Mix the Sauce: In a bowl, combine the mayonnaise, tomato ketchup, Worcestershire sauce, lime juice, and Tabasco. Stir well. Taste and adjust the seasoning—add more Tabasco if you like a kick. Cover and refrigerate.
- Prepare the Salad Base: Just before serving, shred the lettuce and rocket fairly finely. Divide the greens among 6 stemmed glasses or small bowls.
- Add Avocado: Peel and chop the avocado into small dice. Scatter the cubes into the glasses among the lettuce leaves.
- Assemble: Pile the chilled, peeled prawns generously on top of the greenery. Spoon the pink cocktail sauce over the prawns.
- Garnish and Serve: Dust the top with a pinch of cayenne pepper. Hook one reserved unpeeled prawn onto the rim of each glass and add a lime wedge. Serve immediately with brown bread and butter.

Recipe Tips
- Dry-Frying Secret: Cooking prawns in their shells without oil (“dry-frying”) concentrates their flavor and prevents them from becoming greasy or watery. The shell acts as a steamer, keeping the meat juicy.
- Avocado Timing: Don’t chop the avocado until the very last minute to prevent browning. If you must prep ahead, toss the avocado cubes in a little lime juice to keep them green.
- Sauce Balance: The sauce should be a pale pink. If it’s too red, you’ve added too much ketchup; add more mayo. If it lacks depth, add a splash more Worcestershire.
- Glassware: Serving this in a stemmed glass isn’t just retro affectation; it keeps the cold ingredients away from warm hands, maintaining the crisp temperature of the salad.
What To Serve With Prawn Cocktail
- Brown Bread and Butter: Thinly sliced, buttered brown bread (or soda bread) is the non-negotiable partner.
- Lemon Water: Offer a finger bowl if serving shell-on garnishes.
- Dry Riesling: The acidity pairs perfectly with the rich sauce and sweet seafood.
- Melba Toast: For a crunchier alternative to soft bread.

How To Store Prawn Cocktail
- Refrigerate: The components can be prepped ahead, but assemble right before serving. The sauce keeps for 3 days. The cooked prawns keep for 2 days.
- Do Not Freeze: Neither the lettuce, avocado, nor the mayonnaise-based sauce freezes well. Consume fresh.
Delia Smith Prawn Cocktail Nutrition Facts
- Calories: 320 kcal
- Fat: 22g
- Carbohydrates: 8g
- Protein: 24g
- Cholesterol: 180mg
Nutrition information is estimated per serving.
FAQs
Can I use pre-cooked prawns?
Yes. Buy high-quality large prawns in their shells. If you can only get shelled prawns, reduce the quantity to 1 lb (450 g) as you won’t have the shell weight waste.
Is this gluten-free?
Yes, the prawn cocktail itself is gluten-free. Just ensure your Worcestershire sauce and ketchup are certified gluten-free, and serve with GF bread.
Why use lime instead of lemon?
Delia specifies lime here because its floral acidity pairs particularly well with the avocado and adds a slightly more modern, zesty twist than traditional lemon.
Try More Recipes:
- Delia Smith Luxury Fish Pie Recipe
- Delia Smith Jambalaya Recipe
- Delia Smith Fish Pie RecipeDelia Smith Fish Pie Recipe
Delia Smith Prawn Cocktail Recipe
Course: AppetizersCuisine: BritishDifficulty: Easy6
servings25
minutes5
minutes320
kcalThe ultimate classic starter featuring dry-fried fresh prawns, avocado, and a homemade piquant Marie Rose sauce.
Ingredients
2 lb large prawns (shell-on)
1 Cos lettuce, shredded
1 oz rocket leaves
1 avocado, diced
Sauce: 1 cup mayo, 2 tbsp ketchup, 1 dsp Worcestershire, 1 dsp lime juice, Tabasco
Garnish: Lime wedges, cayenne pepper
Directions
- Dry-fry prawns 4-5 mins until pink; cool.
- Reserve 6 for garnish; peel and devein the rest.
- Mix sauce ingredients; chill.
- Divide shredded lettuce, rocket, and avocado into glasses.
- Top with prawns and sauce.
- Dust with cayenne; garnish with whole prawn and lime.
- Serve with brown bread.
Notes
- Cooking prawns in shells retains maximum flavor.
- Assemble immediately before serving to keep lettuce crisp.
- Rocket adds a peppery kick absent in 70s versions.
- Sauce improves if left to meld for an hour.
