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Keto Shrimp Cocktail

Keto Shrimp Cocktail

Keto prawn and avocado cocktail

This classic keto shrimp cocktail recipe can be made with shrimp or prawn, large or small. So I use the words prawn or shrimp interchangeably in this blog post to mean either. I have used frozen cooked prawns to make this one, as it makes it super quick and easy to make.

We always have some frozen cooked prawns in the freezer that we source at Aldi, and all the other ingredients we have in our pantry.

If you use frozen uncooked prawns, you will need to cook them before you use them of course. This will then take a bit longer to make.

shrimp stuffed avocado recipes

You can, of course, always use fresh shrimp as well, if you can get them. But make sure that you cook them properly, to avoid any risk of food poisoning. And of course, it will take you longer to make, but will probably taste even better than it does with frozen prawns.

The common British Starter

When I was growing up in the UK back in the 60’s and 70’s, prawn cocktail was probably the most common starter one would see when visiting restaurants or at weddings.

It was often served up in a glass or on a bed of lettuce. But now I understand why – it is so easy to make and is absolutely delicious. 

shrimp stuffed avocado recipe

I remember when I first moved to live in the Netherlands I was staying in a hotel in Alblasserdam for several weeks with a great view of the Kinderdijk from my bedroom window.

There, I remember, I also used to have a prawn cocktail every evening after work as a starter, made with fresh Dutch prawns, which are quite small compared to other prawns species.

But wow, was it good. The sauce was more like a thousand island dressing sauce, but still very tasty. The memory has remained with me as it was simplicity itself.

shrimp cocktail keto
Keto Shrimp Cocktail

Keto Shrimp Cocktail Sauce

This prawn keto seafood sauce is so easy to make. All the ingredients I have in my pantry, and the sauce can be put together in a few minutes. Nothing fancy, no cooking involved, just mixing.

You can use it to serve with other seafood as well like langoustines or crayfish if you have them available.

The sauce is also nicely keto as most of the ingredients are keto-friendly. Horseradish, Hellmann’s Real mayonnaise, and tabasco are all keto-friendly.

Prawns or shrimp are also keto-friendly. Worcestershire sauce and tomato puree are slightly less so, but in these small quantities, needed for the taste profile, they should not upset your ketosis.

shrimp cocktail sauce with mayonnaise

But with the addition of the delicious Avocado fruit, containing loads of healthy monounsaturated fatty acids and fibre, this combination gives you a great keto meal. And certainly one you will want to repeat over and over, as who can resist this delicious meal?

Often, the original sauce that accompanied the ubiquitous prawn cocktail in the 1970’s would be known as a Marie Rose sauce.

This would often be a simple mayonnaise and tomato ketchup mixture and there are quite a few websites out there discussing the origins of this name and the sauce.

shrimp cocktail presentation

As most of them disagree with each other, I am not going to get into that argument, except to say that THIS sauce, with horseradish, is the perfect Marie Rose sauce and what I believe it is meant to taste like 😄 ! And it does not have ketchup in it.

How many carbs in cocktail sauce?

The quantities in the recipe are enough for two snack lunches of about 376 calories each and only around 11g of carbs each if I calculate this manually using Nutrionix. The calories are pretty much all in the avocado, the prawn and the mayo.

prawn cocktail with avocado

Whether you are on a keto diet or not, this is a great starter for any gathering. Make it part of your weekly keto meal plan.

But why not also try and serve the prawns or shrimps separately without the avocado on some fresh bread, in a sandwich or even as a canape on some crackers? It is also very good as a filling for a baked potato. The possibilities are endless.

keto shrimp cocktail

I hope you enjoy trying this easy recipe. Please let me know how you get on in the comments section below!

(Whilst writing this, I have to admit that I have just defrosted some more prawns to go and make this recipe again for our lunch!)

How to make Prawn Cocktail

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keto shrimp cocktail

Keto Shrimp Cocktail

Yield: 2
Prep Time: 5 minutes
Total Time: 5 minutes

This classic British starter has always been a popular choice around the world. One of my personal favourites and so quick and easy to make. Also great to serve up as a canapé.


  • 1 avocado (ready to eat), seeded
  • 100g cooked frozen prawns (or shrimp)

For the keto seafood sauce

  • 1 tsp creamed horseradish
  • 1 tsp lemon juice
  • 2 tbsp Hellmann's Real Mayonaisse
  • 4 drops tabasco
  • 1 tsp Worcestershire Sauce
  • 1/2 tsp tomato puree (tomato paste)
  • Salt and Pepper to taste
  • Some paprika to sprinkle


  1. First, defrost the prawns or shrimp in some warm water. Sieve out and use some kitchen paper to squeeze all the water out of the shellfish so they are dry.
  2. Then in a bowl mix the mayonnaise, horseradish, lemon juice, tabasco, Worcestershire sauce, tomato puree and salt and pepper to taste.
  3. Then mix the prawns/shrimp into the seafood sauce and mix well.
  4. Cut the avocado in half and remove the seed (careful for your fingers!!)
  5. Add the shrimp cocktail mix to top off the avocado and sprinkle with some paprika (sparingly).


Shrimp cocktail presentation Ideas

1. Serve up with some garnish like chopped parsley, or a slice of lemon, and some buttered fresh bread.

2. Serve without avocado in a glass or a small bowl.

3. Serve as an appetizer on a bed of lettuce.

4. Serve the sauce separately as a dip for prawns (if you have some large ones)

5. Spread the shrimp cocktail between two slices of bread for a delicious sandwich.

6. Serve with a slice of avocado on a cracker as a canapé.

7. Serve as a filling in a baked potato.

Nutrition Information:
Yield: 2 Serving Size: 1
Amount Per Serving: Calories: 376Total Fat: 32gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 25gCholesterol: 118mgSodium: 1056mgCarbohydrates: 11gFiber: 7gSugar: 2gProtein: 14g

This nutrition information was calculated using Nutritionix, but may not be 100% accurate.

Did you make this recipe?

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