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McGerty Fine Foods Caramelised Onion Relish

Product Information

Health benefits of the humble onion

Let’s face it: onions are amazing. So amazing they were probably the original ‘superfood’. Onions help fight inflammation, reduce cholesterol, and give you a healthy dose of vitamins A, B6, C, and E. Plus, they’re packed with minerals like sodium, iron, potassium, and dietary fibre, and are a great source of folic acid.

There aren’t many foods on the planet are so beneficial to you, but can also be so soft, tangy, and sweet. But onions – the heavy-hitter in our Caramelised Onion Relish – tick every box.

How it’s made

Our UK-made relish starts with the humble white onion – nature’s most versatile vegetable. Giving off a flavourful zing, these onions are really rewarding with their ability to easily caramelise.

In our Scottish kitchens, the McGerty’s team hand make every batch of our Caramelised Onion Relish. From skinning onions to packing the relish for delivery, there’s nothing different about our production process than how you’d make relish in your own kitchen. Large, steam-heated copper pans are used to transform our modest onions from their natural sharp and crunchy state.

Over time, a deep, rich, sweet flavour develops as the onions’ natural sugars start to caramelise and brown. Our onions then say hello to other ingredients like vinegar that make up our relish’s zesty sauce, helping to give it a longer shelf life. Finally, a touch of sugar helps to reduce the relish’s acidity.

This delicate hand-crafted production method means we are literally “small batch”, but we pack a lot of love and care into every pot. It means our relish is authentic and more of an indulgent treat compared to other ultra-processed alternatives. Our team makes just over 4,000 pots in a day, 100% hand-packed.

Packing a lot into a small pot

Our Caramelised Onion Relish is served in a smaller pot size to others on the market. This means it’s ready to go! You can grab a pot on your way to work for lunch, to picnics, or to a dinner party. It’s simply a super-handy size. Plus, it means it won’t hang around long in your fridge – that’s great for food waste, and great for saving money. Our small pots also save CO2 as there’s less to physically transport to stores.

How to enjoy

Our Caramelised Onion Relish is sweet, zingy, and ready to cut through sharp cheeses or be a sidekick to any Great British barbeque! Because onions are so versatile, this relish really will elevate any food you pair it with.  Other ways to enjoy include:

  • Sandwiches – add it to chicken salad

  • Served on a board- with cheese or a cured meat platter

  • Served with roasted chicken or turkey

  • As an upgrade to cheese on toast

  • As a side to an Indian curry

  • Used on a cheese or veggie burger

Allergy Advice

For allergens, including Cereals containing Gluten, see ingredients in bold.

May also contain Mustard.


Onions (50%), Sugar, Malt Vinegar (Barley), Apples, Barley Malt Extract, Garlic, Mixed Spice, Salt

Suitable for Vegetarians

Nutritional Values

Typical values per 100g contains: Energy 866 kJ / 204 kcal, 0.1g Fat (Of which saturates 0g), Carbohydrates 48.2g (Of which sugars 46.2g), Protein 1g, Salt 0.16g


Refrigerate after opening and consume within 1 week.

Made in the UK for Market Fresh Ltd, Olivers Barn, Maldon Rd, Witham, Essex, CM8 3HY.

100g contains:












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