Dietitian UK: Red Onion Marmalade

Red Onion Marmalade

There are some things in life that just work together. Rice and curry, rhubard and custard, scones and jam and one of my favourites: Cheese and Chutney. Earlier this year I made the most delicious Sri-Lankan Spiced Plum Chutney which has definitely aged beautifully. Today inspired by a pile of red onions I got up early (thanks to the little one) and we set about making this delight. It’s pretty quick to make and only has a few ingredients (if you have the onions you’ll probably have the rest too).

We’ve made ours as Christmas gifts. I’m planning on making a few homemade hampers for friends: chutneys, jam, biscuits and truffles perhaps. Makes a great present for anyone on a special diet as it’s gluten free, wheat free, egg free and nut free 😉


9 red onions

4 cloves garlic

dried thyme

50g butter

1 tbsp olive oil

4 tbsp white wine vinegar

4 tbsp balsamic vinegar

4 tbsp white sugar

4 tbsp dark brown sugar



  • Peel and quarter the onions, peel the garlic, then either finely chop or use a food processor to do this for you.
Dietitian UK: Chopping red onions for Red Onion Marmalade
Dietitian UK: Chopping red onions for Red Onion Marmalade
  • Heat a large pan, add butter and oil, then cook the onions and garlic for 5 minutes.
  • Add the vinegar and sugar, stir well and bring to the boil.
  • Reduce the heat to a simmer and leave for about 30 minutes until it thickens.
  • Taste – add more sugar/vinegar to taste and add salt to taste.
  • Pot up in sterlised jars. These quantities made about 6-7 jars.
Dietitian UK: Red Onion Marmalade
Dietitian UK: Red Onion Marmalade
Although this can be eaten straight away it’s a lot better if you keep it a couple of weeks first. I can’t wait to eat mine!



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12 thoughts on “Red Onion Marmalade

  1. Cannot wait to make this! Went out to buy the ingredients today and forgot the bloomin sugar! Back out tomorrow but struggling to find jars.

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