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Award Winning Fishmongers

Enjoy our delicious and nutritious seafood! Don't forget to try some of our award-winning sauces, too. 


The Cornish Fishmonger's Homemade Marinière Sauce - 350g- Serves 2-4

£6.50 £6.50
In stock

Moules Marinière is such a delicious dish and a favourite at restaurants across the World. We've made it even simpler to enjoy at home, with our homemade Marinière Sauce.

Created in The Cornish Fishmonger's Kitchen by an experienced, award-winning chef - our Marinière Sauce is carefully crafted with fresh seasonings, flavours and of course white wine!


Named one of the UK's top cooking sauce in the Great British Good Awards 2023, claiming top spot in the 'Cooking Sauces' category we were up against other producers from across the UK including supermarkets and national brands.

The category was judged by renowned chef Olly Marlowe, who said its “the best packet seafood sauce I’ve tried to date.”  He continued: “The base of the sauce lifted the whole thing and allowed the nuanced flavours to rest firmly on their laurels. Epic with crustacea”. Read more here. 


This Marinière Sauce is enough for 1kg of Mussels. We recommend serving with fries, crusty white bread and white wine. Whether it's a weekend lunch, an evening supper or a starter for a dinner party - we've made everything so simple with this sauce.

Cooking Instructions

1. Rinse 1kg of Mussels thoroughly under fresh water, removing any barnacles or beards where possible. Discard any which are broken or fail to close when tapped with a knife.

2. Pour 50ml of water into a saucepan and bring it to a boil. Once boiling, add the cleaned Mussels to the saucepan.

3. Place a tight-fitting lid on the pan and bring it back to a boil. Let the Mussels steam for around three minutes. Make sure the Mussels are thoroughly cooked and have opened up.

4. Add the sauce to the cooked Mussels and allow the sauce to combine with the cooking liquid released from the Mussels. Heat thoroughly and coat the Mussels. Simmer for a further three minutes. Discard any Mussels which have not opened.

5: Serve the Mussels in a bowl, we suggest accompanying them with crusty bread and garnish with a wedge of lemon. Enjoy!


Making Moules Marinières using our award-winning homemade sauce, and delicious Cornish Mussels


Nutritional information (per 100g)

Nutritional information


Fish Stock (Fish), Onion, White Wine (Sulphites), Butter (Milk), Cream (Milk), Wheatflour (Gluten), (Wheat), Garlic, Parsley, Lemon Juice (Sulphites)

Allergy information:

May contain Molluscs, Crustaceans, Mustard and Egg. Contains Fish, Milk, Wheat, Sulphites and Gluten.


Keep frozen . If defrosted, keep refrigerated and use within 3 days. Thoroughly defrost before use.

We take the utmost care to ensure the accuracy of the product information displayed on our website. However, we want to make you aware that product recipes may undergo periodic changes, which may affect the nutritional or allergen information provided. As such, we recommend that you always consult the product labels and not rely solely on the information presented on our website. Here at the Cornish Fishmonger, we are committed to providing our customers with the highest quality products and accurate information to enable them to make informed purchasing decisions.

Kcal 164kCal/690kJ per 100g
Protein 2.3g per 100g
Carbohydrates 6.9g per 100g
Sugars 0.7g per 100g
Fat 14g per 100g
Saturates 8.4g per 100g
Salt 1.1g per 100g
Warning Contains Fish Contains Shellfish

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