Marinate fish at home

How to preserve fresh mackerel at home


Wondering what to do with mackerel fish to change a bit? We can easily preserve mackerel at home to have a fish fillet full of flavor and super healthy, that stores easily in the fridge up to a week. Just like a canned mackerel, but make it more fresh and healthy!

An easy way to have a main protein to pair with a side veggies or in a salad; but also a delicious adding to a tomato sauce to your pasta.

Mackerels are often considered a low-value sea food alternative, yet it’s a great fish with a high nutritional profile. You just need to know how to cook it well!

How to preserve mackerel at home

0 from 0 votes
Course: MainCuisine: ItalianDifficulty: Medium


Prep time


Cooking time


Total time




  • 1 kg / 35 oz (4 medium) fresh mackerel

  • fresh persil, mint, basil and rosemary

  • one organic lemon and one orange

  • extra virgin olive oil

  • salt

How to

  • Clean mackerels from their entrails (or ask your fish shop to do it!)
  • Prepare a pot of boiling water, then add one sliced organic lemon, one organic orange, the rosemary, and a teaspoon of salt.
  • Turn the heat on medium and then slip the whole mackerels into the simmering water.
  • Boil them for 20 minutes. Drain and let them cool down.
  • Remove the skin and the bones from the fishes, keeping only the fillets. Check
  • Place the cleaned mackerel fillets in a casserole, layering them with persil, mint, basil leaves in between the fish. Pour some good extra-virgin olive oil on top of everything.
  • Let the mackerel marinate for at least 1h, the more they marinate, the more flavorful they will be.


  • You can also omit some herbs or the citrus, following your taste and what you have on hand.

Want more recipes like this?

Follow me @martainthejar on Instagram and see!

Ready to try this recipe?

Save it from my Pinterest @martainthejar !

Once you have understood how to preserve your mackerel fillets, you can add it to a salad bowl, with some capers and lemon slices. But salad is just an option: you could eat it on a bruschetta, as pasta sauce or straight from the casserole!

You can also make preserve jar to store it in your pantry or make a gift to someone.

Salad bowl with mackerel


  1. Pingback: Kale and hazelnut pesto sauce - Marta in the jar

  2. Helen Wells

    Hi. How long will the mackerel keep in the jar /fridge, or is it possible to freeze it? Thanks.

    • Hi Helen,
      If you cover them with a good amount of oil, they can stay in a sealed jar in the fridge for a whole week. But I never tried to freeze them. Let me know if you try!

  3. Pingback: Quick and easy Mackerel Spaghetti - Marta in the jar

Leave a Comment

Your email address will not be published. Required fields are marked *