Mackerel Fillets

£4.25
£4.25
Not landed today

Only premium fish is selected

Prepared within hours of being landed

Sent direct from the quayside

Mackerel Fillets specs

Portion Size:
Min 150g
Skin on:
Yes
Bones:
No
Can I freeze it?
Yes
Latin name:
Scomber scombrus
Allergen:
Fish
May contain:
Crustacean, Mollusc

Cooking instructions

Chargrill

HOW TO: Fish cooked over a fire is delicious, though it’s really important to get the optimum cooking temperature by allowing the grill bars to become hot, then waiting for the flames to die right down again.

Rub a whole fish with oil, make a few slashes into the flesh, then sprinkle lightly with fresh breadcrumbs (this will prevent sticking and leave you with some nice crispy bits).

As a guide, a 450g whole fish which serves one person, will take about 7-8 minutes to cook on each side (don’t turn the fish until this time).  You will see the skin slowly crisping and charring – if it happens too quickly your fire is too hot).  A 1 – 1.2kg fish cooked in the same way will take 12-15 minutes a side.

For fillets, rub the fish with olive oil, sprinkle lightly with breadcrumbs, and cook, skin side down, until you see the skin crisp and fish cooking as you see the heat rising through it. Flip the fillet over for the last 2 minutes of cooking time and serve.

Grill

HOW TO: Using your grill is an easy and healthy way to cook either thinner fillets or portions like hake and sea bass at home. 

Preheat your grill, rub your fish with a little olive oil and salt and put skin side up on a piece of parchment paper (this is to prevent fish from sticking) onto a grill pan. 

Place it under the grill on the top shelf, about 10 to 15cm away from the heat. As a guide a fillet portion will need 8-10 minutes, a flatfish for 10-12 minutes.  You don’t need to turn flat fish as the heat of the grill will cook it through.

Panfried

HOW TO: To pan fry a piece of fish, use a non-stick pan or one that you know is non-sticky! Heat the pan and add a few tablespoons of a neutral oil (vegetable oil will do).  When the oil is hot, lay the fish in the pan. For hake, bass and salmon put it in the pan skin-side down. For cod, thick white fish, flat fish fillets and gurnard lay them flesh-side down. 

Allow the fish to sizzle and don’t be tempted to turn them, let the pan do the work, you will see the heat rise and the fish will firm up. If it’s a thin piece of fish turn it and cook for just a minute or so and it's done. If the fish is thicker, after you've turned it place in a pre-heated oven set to 200˚C/180˚C Fan/400˚F/Gas Mark 6 for about 3-4 minutes to finish the cooking.

Delivery

Place your order before 2pm Monday to Thursday, or before midday on Friday for next day seafood delivery to your door. Our delivery partner DPD is currently only able to send fresh fish & seafood to addresses in the UK Mainland, excluding the Scottish Highlands and Islands.

£18.00 Minimum spend

< £49.99 / £6.50 delivery

< £84.99 / £3.50 delivery

£85 + free delivery

Saturday £9 flat rate

You can choose to receive orders containing only books & tinned seafood via Royal Mail for £3.50 and free delivery at £85

You can select a future delivery date for orders not including fresh fish and pre 12 delivery can be selected at checkout.

Reviews

Freshness guarantee

We’re dedicated to delivering only the finest premium seafood—so fresh, it sets a new standard, even with our frozen fish. Your satisfaction is our priority, which is why we offer a money-back guarantee if you’re not happy with your order.

Wild caught

Boneless

Raw

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Mackerel Fillets Recipes

Fish curry recipe with parathas
Fish curry with fried parathas
The Skipper’s roll recipe
The Skipper’s roll
Fish baked in sea salt recipe
Fish baked in sea salt
The Mackerel Schwarma recipe
The Mackerel Schwarma

About Mackerel Fillets

Mackerel is a fish that particularly repays being eaten very fresh before its high oil content starts to spoil. Its aroma is light and oceanic, reminiscent of fine green seaweed, and its predominantly pink flesh is succulent. Although there's a high level of oil, it's balanced by generous amounts of juice, which helps disperse it in the mouth. It's a fish that takes to barbecuing, poaching, baking and grilling, works well with strong flavours and is delicious with nothing but a squeeze of lemon.

This portion will be made up of 2-4 fillets.

Mackerel Fillets

Not landed today

Why is Rockfish fish so fresh?

At Rockfish, we pride ourselves on delivering the freshest fish you can find. Our location right on the quayside means we’re just steps away from the day’s catch. This proximity allows us to inspect and select only the finest quality fish, ensuring that what reaches your plate is nothing short of exceptional. From the moment the fish is landed, it takes just a short 17-meter journey to our dedicated fishmonger unit, where it’s expertly prepared within hours.

How is the fish prepared?

To maintain peak freshness, we portion and vacuum-pack every piece of seafood on the same day it’s landed. This keeps the fish in pristine condition, clean, and easy to handle for cooking. Whether it’s destined for our restaurants or your home, you can trust that Rockfish fish is as fresh as it gets—straight from the sea to your table in record time.

Turbot T-bone portion from Rockfish

How does my fish arrive?

Your fish portions are individually vac packed which keeps the fish pristine, easy to handle, and completely odour-free, making unpacking and storing a breeze. All of the fish clearly identifies the boat that caught it giving full traceability and links you to cooking instructions.

OSM seafood delivery contents

Sustainable packaging

We also take pride in our sustainable packaging. Our delivery boxes are made from recycled plastics, offering strength and excellent insulation to keep your seafood perfectly chilled throughout its journey to your home.

You can even return your box to us, and we’ll work with our recycling partner to transform it into outdoor furniture—creating a sustainable loop for your order

Freshness guarantee

We stand by the quality of our seafood with a Freshness Guarantee. If you’re not completely satisfied with the freshness of your fish, we’ll refund your purchase—no questions asked

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Our view on sustainability