Caramelised Onion and Quince Chutney
Sweet, tangy, and with light floral notes, Caramelised Onion and Quince Chutney is a great way to capture the flavour and fragrance of one of autumn’s most under-appreciated fruit. With onions cooked slowly until jammy, fragrant quinces and apple vinegar, this preserve balances sweetness and sharpness perfectly. Ideal for cheeseboards, burgers, or gifting over the…
Sweet, tangy, and with light floral notes, Caramelised Onion and Quince Chutney is a great way to capture the flavour and fragrance of one of autumn’s most under-appreciated fruit. With onions cooked slowly until jammy, fragrant quinces and apple vinegar, this preserve balances sweetness and sharpness perfectly. Ideal for cheeseboards, burgers, or gifting over the festive period, this chutney is just one of many amazing ways to make the most of your autumn quince harvest.
Why Quince?
Quinces are one of autumn’s hidden gems, yet massively underappreciated in my opinion. Inedible when raw and a little tricky to prepare, they were once highly sought after for their naturally high pectin content, making them perfect for setting jams and jellies. But with the rise of commercially available pectin and the popularity of their close cousins, apples and pears, quince cultivation has declined dramatically.
Today, they’re often seen as a fringe fruit — cherished mainly by those passionate about seasonal gardening and cooking. Luckily, my partner’s parents are just the kind of people who care about eating with the seasons, and every year their quince tree produces an enormous harvest that we can cook with and preserve.
There is nothing quite like the smell of freshly harvested quince. I can’t think of another fruit with such a strong, floral perfume that fills the room the moment you bring it inside. The flavour itself is more subtle than the scent, but it carries the same character — apple-like, with a touch of honey. The trick, of course, is knowing how to cook it to unlock all that hidden potential.
An Important Note About Cooking with Quince
Quince softens very quickly once heated — within just five minutes it can feel as tender as a ripe pear, which often tricks people into thinking it’s ready. This is where many go wrong. While the flesh may be soft, the fruit still needs time for deeper changes to take place. The tannins require prolonged cooking to mellow, allowing the natural sweetness to shine through, and the pigments only shift after extended heat and acidity, slowly transforming the pale cream flesh into a warm, pinkish gold. Patience is key — the longer cook unlocks quince’s true flavour and beauty.
Ingredients Breakdown
Quince
They will bring a special sweetness and floral notes that would be otherwise missing in an onion chutney. Although rock hard and somewhat chalky when fresh, cooked long enough they become soft enough that they can be mashed if desired, but will hold also hold their shape if you choose not to mash.
Onions
Slowly caramelised onions add depth, savoury richness, and balance out the tartness of the fruit. You can use either red or white onions. White will be a bit sharper in flavour, while red will be darker and sweeter.
Brown Sugar
Essential for balancing acidity and helping the chutney thicken into a glossy preserve. Caster sugar would work too, but you’d miss out on the gentle molasses flavour that comes with darker sugar varieties.
Apple Cider Vinegar
The sharp counterpoint to the sugar and fruit, giving chutney its tang. Cider vinegar works perfectly with quince. You can also use white wine vinegar or even malt vinegar for a more robust flavour.
Salt & Pepper
Brings everything into balance and enhances the natural flavours of the fruit and onions. Don’t skip them!
Step-by-Step Instructions
- Slice and caramelise the onions
Peel and thinly slice the onions as evenly as possible so they caramelise at the same rate. Heat 3 tbsp olive oil in a heavy bottomed pan over a low-medium heat. Add the onions and cook gently for 25-30 minutes, stirring often until they turn a deep golden colour. Don’t rush this stage. Slowly caramalising the onions unlocks their full sweetness potential.
Tip: When caramalising onions, always use a really heavy bottomed pan if possible. It makes a huge difference in the cooking. Thinner, lighter pans tend to catch and burn much easier, giving the onions a bitter taste.
- Prepare the quince
While the onions are caramalising, start with your quince. Peel them and remove the core. Remove any seeds that might still be in there, and then dice into 1cm or smaller cubes.
When dealing with quince, use a sharp and sturdy knife. They are hard and require a lot of force to get through. To remove the seeds, use either a melon baller or the point of the peeler to dig them out.
- Add quince and spices
Once the onions have become a deep golden colour, add your quince, mustard seeds, salt, and pepper. Cook for a further 5 minutes, stirring often, until the quince begins to soften and release its aroma.
- Add sugar and vinegar, and simmer
Sprinkle in the brown sugar and pour over the apple cider vinegar. Stir until the sugar has dissolved. Reduce the heat and simmer the chutney uncovered for 40–50 minutes, stirring occasionally, until thick and jammy.
The quince will begin pale in colour and without much flavour, but after nearly an hour simmering, they will become a deep pink colour and their flavour will intensify.
If it looks to be drying too much, add a little more water. - Check consistency
The chutney is ready when a spoon dragged across the bottom of the pan leaves a clear path before slowly filling in.
The quince will still hold its shape, but you can mash it lightly if you prefer your chutney a little smoother. I kept mine chunky as I had diced the quince quite small to begin with.
- Jar it up
Spoon the hot chutney into sterilised jars, seal immediately, and leave to cool.
Caramelised Onion and Quince Chutney
Ingredients
- 2 large white onions, thinly sliced
- 3 tbsp olive oil
- 150 g brown sugar
- 200 ml apple cider vinegar
- 1 tsp yellow mustard seeds
- ½ tsp black pepper
- ½ tsp fine salt
Instructions
- Peel and thinly slice onions evenly.
- Heat 3 tbsp olive oil in a heavy-bottomed pan over low–medium heat. Add onions and cook 25–30 minutes, stirring often, until deep golden.
- While onions cook, peel, core, and dice quince into ≤1 cm cubes.
- When the onions are finished, stir in diced quince, mustard seeds, salt, and pepper. Cook 5 minutes, stirring often, until quince starts to soften and becomes aromatic.
- Sprinkle in brown sugar and pour in apple cider vinegar; stir to dissolve. Reduce heat and simmer uncovered 40–50 minutes, stirring occasionally, until thick and jammy.
- Drag a spoon across the pan; if it leaves a clear path that slowly fills in, it’s ready. Chunks should hold their shape; mash lightly if you prefer it smoother.
- Spoon hot chutney into sterilised jars, seal immediately, and cool. For best flavour, let mature at least 1 week before opening.
