Red onion marmalade recipe

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makes: 2 small jars
Skill: medium
Prep: 15 min
Cooking: 1 hr

Nutrition per portion

Calories 25 kCal 1%
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  • This tangy red onion marmalade with mustard seed, garlic and chilli is delicious served with mature cheddar cheese or cold meats.


    • 1tbsp olive oil
    • 500g red onions, peeled and finely sliced
    • 1tbsp mustard seeds
    • 2 cloves garlic, peeled and finely sliced
    • 1 red chilli, deseeded and chopped
    • 60g light muscovado sugar
    • 100ml red wine
    • 100ml  balsamic vinegar
    • A handful of thyme sprigs
    • 2 small jars, sterilised


    • Heat the oil in a large pan with the onions and mustard seeds. Cook for 15 mins. Add the garlic, chilli and sugar, and 5 tbsps water. Cover and cook for 15 mins. Add the wine, vinegar and thyme sprigs.

    • Bring to the boil, then simmer for 20-30 mins until the mixture is syrupy. Remove thyme.

    • Spoon into the hot, sterilised jars, seal and label. The marmalade will keep 2 months.

    Top tip for making Red onion marmalade

    Use port, if you want a richer flavoured marmalade instead of the red wine.

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