Prawn Marie Rose Sandwich

A prawn Marie Rose sandwich brings together one of Britain’s most familiar cold seafood fillings with the soft, simple structure of a well-made lunch sandwich. The prawns are coated in a creamy pink sauce sharpened with lemon and black pepper, giving the filling its recognisable tang without masking the sweetness of the seafood. Buttered white bread keeps the sandwich soft and classic, while crisp iceberg lettuce adds the clean crunch needed to stop the filling feeling heavy. Best assembled just before eating, it is quick, fresh and neatly balanced: chilled prawns, creamy dressing, gentle acidity and a tender bread wrapper.
Cuisine style British sandwich classic
Cooking style No-cook preparation • Minimal cleanup
Time commitment Under 15 minutes

Why this recipe works

  • Ready in minutes: Cooked peeled prawns and a simple mixed sauce make this a fast no-cook lunch.
  • Bright, creamy balance: Lemon juice sharpens the mayonnaise and ketchup, keeping the Marie Rose sauce from tasting too rich.
  • Soft and crisp textures: Buttered white bread, chilled prawns and crisp iceberg lettuce give the sandwich a clean, satisfying contrast.

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Ingredient notes

  • Dry the prawns well: Pat the cooked prawns dry before mixing so the sauce stays creamy rather than loose.
  • Adjust the lemon to taste: Add lemon juice gradually until the sauce tastes bright but still creamy.
  • Use crisp lettuce: Iceberg works well because it adds crunch without overpowering the delicate prawn filling.

Texture tips

  • Assemble just before eating: Keep the filling off the bread until serving so the sandwich stays soft rather than damp.
  • Fold gently: Stir the prawns through the sauce carefully to coat them without breaking them up.

Make-ahead tips

  • Keep the filling separate: The prawn mixture can be refrigerated in an airtight container, then spooned into the sandwich just before serving.
  • Best eaten fresh: This sandwich is at its best on the day it is made, while the lettuce is crisp and the bread is fresh.

Equipment you'll need

Ingredients
Instructions
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  1. In a mixing bowl, whisk together the mayonnaise and ketchup. Squeeze in the lemon juice to taste, then season with the black pepper.
  2. Add the cooked prawns and fold gently until evenly coated in the Marie Rose sauce. Taste and add a little more lemon juice if you like it sharper.
  3. Butter the white bread slices. Lay the iceberg lettuce on one slice, pile on the prawn mixture, then top with the second slice.
  4. Press lightly, then cut the sandwich in half with a bread knife. Serve straight away while the lettuce is crisp.

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Recipe notes

Tips

  • Dry the prawns well before mixing so the sauce stays creamy rather than watery.
  • For the best texture, keep the lettuce leaves whole and crisp, and add them just before serving.

Substitutions

  • Replace White bread with Brioche bread for a richer, softer sandwich.
  • Replace Lemon with Lime for a slightly more aromatic citrus note.

Storage

  • Refrigerate up to 1 days
  • Best eaten straight away. If needed, keep the prawn filling in an airtight container in the fridge and assemble the sandwich just before eating to keep the bread from going soggy.

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Prawn Marie Rose Sandwich
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Recipe overview

  • Servings: 1 servings
  • Total time: 10min (10min active)
  • Difficulty: Easy
  • Cuisine: British
  • Allergens:
    Crustaceans Eggs Gluten Wheat
Beginner friendly Kid friendly

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Equipment you'll need

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