I tried this recipe for the first time at the weekend (donated by a friend) The important thing is to taste as you go along. Small adjustments can make a big difference.

6 tomatoes on the vine - if you can get them, these taste best.
1 large onion
1 clove of garlic
1 tbsp chopped fresh coriander/cilantro
juice from 2 lemons and a little grated rind
1 - 2 tbsp olive oil
1 tsp salt
2 small red chilis with seeds removed
1/2 tsp chilli powder

I don't like very hot food and find that this is just spicy enough but if you are very sensitive to heat do not add the chillis. The lemon gives this salsa a really good, fresh taste. There really is no substitute for fresh lemons!

Plunge tomatoes into a bowl of boiling water for about 30 secs-1min. Remove and put into cold water to stop the tomato 'cooking'. Remove and discard the skins and chop the tomatoes. Finely chop the onion and mince the garlic. Cut the chilli's with scissors (quicker when things are small) and remove the seeds. Add all the ingredients to a bowl and mix thoroughly, mash/blend some of the mixture for a less chunky salsa. Add a little coriander on top to garnish. Cover and refrigerate until needed. Tip:- salsa is best made a few hours in advance to allow all the flavours to mingle.