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Home ยป Sandwiches ยป Classic Prawn Mayo Sandwiches

Classic Prawn Mayo Sandwiches

Posted March 31, 2022 by Chris Last Updated April 30, 2022

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Here I’ll show you the most delicious way to make a good old fashioned Prawn Mayo Sandwich!

I’m a sucker for a meal deal, and a prawn mayo sandwich is always one of my go-to’s. Sure, store-bought is great, but there’s something so satisfying about making your own. Follow me…

close up shot of two sandwich halves on chopping board

Preparing Prawns

I recommend using ready-to-eat Jumbo/Large King Prawns. These tend to be the juiciest with the most amount of flavour.

Can I use raw prawns?

Yep, just make sure they’re deveined. I typically fry in a little oil for 30-45 seconds per side on high heat until pink and C-shaped. Just allow them to completely cool before adding to the sandwich.

Can I use frozen prawns?

You can, just thaw in the fridge then cook if necessary.

In terms of prepping the prawns, I usually pat them dry with a paper towel, just to remove excess moisture. This helps the mayo wrap around the prawns a little easier. I then dice the prawns into around 4 pieces. You want still want some of the texture, so don’t finely dice.

Process shots: add prawns to chopping board (photo 1), pat dry (photo 2), dice (photos 3&4).

4 step by step photos showing how to slice prawns

Prawn Mayo

As you can imagine, this part is fairly straightforward. All you need is some good quality full-fat mayo and a good pinch of black pepper. No salt needed, the prawns will be salty enough.

Can I make this ahead of time?

You sure can! Just tightly store in the fridge until needed. I usually keep it for 1-2 days.

Process shots: add diced prawns, mayo and black pepper to mixing bowl (photo 1), stir to combine (photo 2).

2 step by step photos showing how to make prawn mayo sandwich filler

Prawn Mayo Sandwich

What Bread to use?

Usually store-bought prawn mayo sandwiches use oatmeal bread, but wholemeal/wholewheat bread works just fine. You can use seeded or regular, just make sure it’s soft and fresh; not toasted!

What else can I add to a prawn mayo sandwich?

I love adding a pinch of fresh chives – they add a gorgeous pop of flavour. You could also add a dash of lemon juice. You can butter the bread as well, but personally I don’t think you need it here.

Process shots: slice bread (photo 1), add prawn mayo (photo 2), add chives (photo 3), add bread and slice (photo 4).

4 step by step photos showing how to make prawn mayo sandwich

Serving Prawn Mayo Sandwiches

I love these sarnies for lunch, typically with a bag of salt and vinegar crisps, but that’s totally optional.

Can I make these ahead of time?

Sandwiches are always best served fresh, so I recommend just making the filling then assembling when needed.

Alrighty, let’s tuck into the full recipe for these prawn mayo sandwiches shall we?!

3 prawn mayonnaise sandwiches stacked on each other on wooden chopping board

How to make Prawn Mayo Sandwiches (Full Recipe & Video)

close up shot of two sandwich halves on chopping board

Classic Prawn Mayo Sandwiches

Here I'll show you the most delicious way to make a good old fashioned Prawn Mayo Sandwich!
SaveSaved! Print Pin Rate
Course: lunch
Cuisine: British
Prep Time: 5 minutes minutes
Total Time: 5 minutes minutes
Servings (click & slide): 3 sandwiches
Calories per serving: 354kcal
Author: Chris
Cost per serving: ยฃ2.50 / $3

Equipment

  • Sharp Knife & Chopping Bowl
  • Small Mixing Bowl
  • Paper Towels

Ingredients

  • 10.5oz / 300g cooked/peeled Large King Prawns (see notes)
  • 6 slices of Wholemeal/Oatmeal Bread (see notes)
  • 1/4 cup / 60g Mayonnaise, or to preference
  • 1.5 tsp finely diced Fresh Chives, optional
  • good pinch of Cracked Black Pepper

Instructions

  • Remove prawns from packet and pat with paper towels to remove the moisture.
  • Slice each prawn into 3 or 4 even-sized pieces and place into a mixing bowl.
  • Add mayonnaise and a good pinch of black pepper, then stir to combine.
  • Divide prawn mayo between 3 slices of bread, top with around 1/2 tsp chives, then add a second slice of bread on top. Slice in half diagonally then enjoy!

Quick Demo

Notes

a) Prawns - I use jumbo/large king prawns because they're big and juicy. I also buy them ready to eat, just for ease. You can use raw prawns and cook them up, just make sure they're deveined. If using frozen prawns thaw in the fridge first, then cook as needed. If you are cooking the prawns just make sure they completely cool before mixing with the mayo.
b) Bread - Typically store-bought prawn mayo sandwiches use oatmeal bread, but wholemeal bread does the trick. You can use seeded or regular, just make sure it's fresh and not toasted!
c) Make Ahead - You can make the prawn mayo ahead of time and tightly store in the fridge until needed. It'll last as long as the packet suggests for the prawns - typically a day or so.
d) Calories - Per sandwich.

Your Private Notes:

Click here to add your own private notes or reminders about this recipe.

Nutrition:

Nutrition Facts
Classic Prawn Mayo Sandwiches
Amount Per Serving
Calories 354 Calories from Fat 155
% Daily Value*
Fat 17.22g26%
Saturated Fat 2.933g18%
Trans Fat 0.057g
Polyunsaturated Fat 9.545g
Monounsaturated Fat 3.715g
Cholesterol 169mg56%
Sodium 1147mg50%
Potassium 226mg6%
Carbohydrates 23.82g8%
Fiber 3.9g16%
Sugar 3.44g4%
Protein 24.51g49%
Vitamin A 264IU5%
Vitamin C 0.3mg0%
Calcium 124mg12%
Iron 1.59mg9%
* Percent Daily Values are based on a 2000 calorie diet.
*Nutrition is based on the absence of salt unless stated as a measurement in the ingredients. Cost is worked out based on ingredients bought from UK supermarkets, then divided by the number of servings. In both instances these values are just for guidance. Please check out my FAQ Page for more info.
Tried this recipe?Be sure to show it off and tag @somethingaboutsandwiches with #somethingaboutsandwiches!

Looking for more mayo sandwiches? Check out my Chicken Mayo Sandwich and Egg Mayo Sandwich!

For more similar sandwiches check out these beauties:

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If you loved this Prawn Mayo Sandwich Recipe be sure to Pin it for later! Already made it or got a burning question? Give me a shout in the comments below!

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If you love a good sandwich or want to know how to up your sandwich game, I've got you covered. Here at Something About Sandwiches you'll find fun, easy and seriously delicious sandwiches recipes! More on the bloke behind the bread...

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