I’m amazed I haven’t shared my red onion marmalade recipe with you before now. It’s something I make all the time as it is just so damn useful and tastes amazing too.
So is this red onion preserve a marmalade or a chutney? It’s a wee bit confusing really name-wise. A marmalade is normally considered something to do with citrus fruit.
But this looks much more like a chutney and there is no citrus at all. Actually no fruit at all either.
Whether you want to call this a marmalade or a chutney you will have to agree on one thing, it’s delicious!
This is one of those savoury preserves that just ticks all the boxes for me. It is super easy to make. It just takes a little time. But not much real hands-on effort.
This onion marmalade is sticky and rich. It packs a hefty punch of flavour yet is sweetly soft in the mouth.
There are grown-up flavours here that make you want to break into a packet of crackers and reach for your finest cheese.
Ingredients for Red Onion Marmalade
Red onions, olive oil, some salt and soft brown sugar.
Now for those all-important extras that make this onion jam so special; red wine, balsamic vinegar and some red currant jelly.
The red currant jelly is purely optional.
The complete list of ingredients and full instructions for making this recipe can be found on the printable recipe card at the bottom of this post.
Can you use brown onions for this recipe? Yes, of course, you can. There will be a difference in the flavour but you will still have a rich and luxurious onion marmalade.
So just use whatever onions you have to hand.
You want to finely slice your onions for this onion chutney. Either use a mandoline (please be careful and either use a guard when grating on a mandoline cutter or use one of those mandoline gloves.
Carmelised onion jam
You want to carmelise those onions. That means making them sweet and oh so tender by slow and low cooking.
The onions will be all melty and sweet, almost toffee-like. To get this effect I like to cook my onions in olive oil with the salt for about an hour.
Cover the onions with a piece of scrunched up and slightly dampened baking paper. This helps to make the onions sweat down.
Once my onions are all soft and gooey and seriously sweet I add my other ingredients to the pan.
First comes the sugar. Stirred in and allowed to melt into nothing. Raise the temperature and get the jam to boil.
Then add the red wine and balsamic vinegar. Finally, that spoonful of jelly if you are using it.
How do you know when onion jam is ready?
The onion marmalade is rich and thick when it cooks. Once you can drag your wooden spoon through the mixture and leave a clear trail on the bottom of the pan your onion marmalade is ready.
Carefully ladle the hot preserve into sterilised jars.
New to preserving? Then don’t panic, I can take you from zero to hero in no time at all.
Just check out these handy articles to get you heading in the right direction fast;
How long does onion marmalade keep?
This savoury preserve will keep for up to a year in a cool dark place. Once opened store the jar in the fridge and use within a month.
Can you water bath can this?
Yes, once you have covered all the steps mentioned above for making this luxurious red onion marmalade simply do your usual water bath canning for 10 minutes.
How to use onion marmalade
This rich and almost creamy sweet and savoury onion preserve is incredibly useful. Yes, it is totally addictive to folks like me who can eat it straight from the jar and forgo the crackers completely.
However, served with a cheeseboard this onion marmalade is a revelation.
As part of the great British Ploughman’s lunch instead of the standard pickle. Think outside the jar my friends!
Spoon a little of your onion jam into simple soups like tomato or potato. It will give an extra dimension of taste and texture.
In a melted cheese toasted sandwich. Just oozing out of the sides.
Onion marmalade for the perfect gravy
But my favourite way of using my red onion marmalade is when I’m making gravy. This is particularly true at Christmas.
Using your carmelised onion marmalade stirred into your homemade gravy gives all that amazingly rich sweetness of the onions without having to do the work.
The onion jam will do the work for you, making your turkey gravy deeply flavoured, rich and aromatic. It will have far more character and have your family and friends asking for more every time.
I use mine in all my gravies from beef to turkey, chicken to pork.
You can also stir this red onion jam into curry sauce, anywhere that you want a roasted onion flavour. This savoury preserve really saves time in the kitchen!
How much does this onion jam recipe make?
You will get one big 500ml jar from this amount of onions. Or a selection of smaller jars. I like to make smaller jars as this luxurious carmelised onion jam makes the perfect wee foodie gift to add to my Christmas hampers.
This recipe makes a great foodie gift, so why not check out my post on how to make Christmas hampers.
Looking for more super savoury preserves to make? Then check these out before you go;
Finally, if you do try this recipe don’t forget to leave a comment/star rating below as I just love to hear from readers. Want more Larder Love? Then follow me on Instagram, Facebook, Pinterest and Twitter and sign up for my newsletter too of course.
Red Onion Marmalade/Chutney
- 500 g red onions (or any onions) finely sliced
- 1 tbsp olive oil
- 1/2 tsp sea salt
- 90 g soft brown sugar
- 75 ml red wine
- 1 tbsp balsamic vinegar
- 1 tbsp red currant jelly (optional)
- Gently heat the onions with salt in the olive oil in a heavy-based pan and cover the onions with some scrunched up dampened baking paper and a lid on top and cook for 1 hour till onions are carmelised and soft
- Remove lid and paper and add the sugar, once dissolved raise the heat and keep stirring as the onions turn deep brown.
- Add the red wine, balsamic vinegar and red currant jelly
- The onion marmalade should be thick and you will get a clear trail if you drag your spoon through the mixture
- ladle into sterilised jars