Sauce Piquante (Sharp White Wine and Gherkin Sauce)

Ingredients

• 3 décilitres white wine
• 3 décilitres good vinegar
• 2 1/2 spoonfuls chopped shallots
• 6 décilitres sauce Espagnole
• 2 spoonfuls chopped gherkins

Instructions

1. Reduce the white wine and the vinegar by half with the chopped shallots.
2. Add the sauce Espagnole and cook for 10 minutes, skimming.
3. Off the fire, complete with the chopped gherkins, parsley and tarragon.