Take the onion and char it on the gas flame

Turn it around on the flame so that all the skin is blistered and black but not burnt

Remove it from the gas flame and let it cool for 10-15 minutes and peel it

Doing this gives a smoky flavour to the onion juice

Chop the tomatoes, onion and coriander finely
 
Mix the onions, tomatoes, chillies and coriander together

The mix must be slightly mashed to make it a semi-paste

This should be added with Salt, lemon and black pepper to taste

The salsa should be allowed to rest for 10 minutes before serving