Updated: Jun 29, 2020
1kg (about 7) brown onions
2 tbsp rapeseed oil
1/2 teaspoon salt
1 litre water
100g carrots, peeled and chopped
60g cabbage, chopped
50g red pepper, deseeded and diced
50g green pepper, deseeded and diced
8 cloves garlic
1 x 5cm (2”) ginger – peeled and roughly chopped
200g tin chopped tomatoes
1 1/2 tbsp garam masala
1 1/2 tbsp ground cumin
1 1/2 tbsp ground coriander
1 1/2 tbsp paprika
1 tbsp ground fenugreek
1/2 ttbsp turmeric
Finely slice the onions by hand or with a food processor.
Heat the oil in a large stockpot. When hot add the sliced onions and stir them well until evenly coated with the hot oil. Continue to stir for about five minutes until soft and fragrant.
Then add all of the remaining ingredients up to the chopped tomatoes.
Add about a litre of water, cover the pot and allow to simmer over medium heat for about an hour. The vegetables will become soft in the stock and it should also reduce by about half.. Add the ground spices and simmer for a futher 5 minutes.
Using a stick blender or counter top blender, blend until very smooth. You shouldn’t see any chunks!
If you are thinking about freezing any of the stock, this is the perfect time to do so. Freezing the thick sauce like this will save freezer space.
To use in your curries, you need to stir in enough water or stock until it is the same consistency as full fat milk. So very runny! This base stock will keep in the fridge for about a week and it can be frozen for up to four months.
This base sauce recipe originates from The Curry Guy