Nadiya's Spice Paste

From - https://thehappyfoodie.co.uk/recipes/nadiya-hussains-instant-noodles


For the spice paste:
3 medium onions, quartered
2 heads of garlic, peeled
100ml vegetable oil
125ml balsamic vinegar
150ml fish sauce
150ml light soy sauce
100g brown sugar
200g chilli paste

To make the spice paste, blitz the onions and garlic until pulsed but not a smooth paste.

Put the oil into a pan on a medium heat. When it’s hot, add the onions and garlic and cook for 10–15 minutes, until the onions are brown. Now add the vinegar, fish sauce, soy sauce, brown sugar and chilli paste, and cook until the mixture is a thick paste with no liquid. This should take about 20 minutes on a medium to low heat.

When the spice paste is cooked and cooled, put it into a jar – it should keep in the fridge for 2 months.