Pound the garlic, chilli and red pepper with the salt in a pestle and mortar until smooth and creamy. Add the egg yolks, vinegar and mustard and mix to a rich creamy consistency Transfer to a bowl and very slowly add the olive oil, whisking constantly Add the lemon juice and pepper, and blend. If you prefer a thinner consistency, add a spoonful of warm water.
Try making your own versions by adding any of the following:
Chopped herbs: tarragon, chervil, parsley, basil
Chopped gherkins, capers, shallots, spring onions
Curry powder, mango or apricot chutney