Step 1

Finely chop the chilli peppers, onion and garlic and add these to the oil ginger and peppercorns in a small pa and simmer for 30 minutes

Step 2

Remove pan from heat and cool for 5 minutes

Step 3

Mix together all the other ingredients that make up the spice mix and put this in a heatproof jar

Step 4

Pour the chilli oil through a sieve into the jar and leave the chilli, onion and garlic bits to cool completely and they will crisp up

Step 5

pick out the cinnamon and star anise and discard

Step 6

Put lid on jar, give it a shake and set aside in fridge for 24 hours for the flavours to develop