Ingredients8 red onion
100g caster sugar
100ml vinegar
dash grenadine syrup
Prep: 20 MINS
Cook: 25 MINS
Method1)Place the onions and sugar in a saucepan, cover and cook over medium heat until soft, about 10 mins.
Pour i vinegar and , then simmer uncovered until the liquid has reduced and the mixture is sticky, about 10 mins more.
Add the grenadine syrup and mix well.
Leave to cool, then transfer to a sterilised jar and seal.