- Place chopped chiles, onions, and other aromatic vegetables in a mortar or heavy bowl and add approximately half of the salt.
- Using a pestle, potato masher, or mallet, pound the aromatics into a rough paste (A).

- Add the tomatoes (or other main ingredient vegetable or fruit) to the aromatics paste, and pound or grind into a rough purée (B).

- Taste and correct the salt.
- Balance the acidity with citrus juice, if needed.
- Stir in chopped fresh herbs (C).

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