tartar sauce
  1. 1/2 cup good mayonnaise
  2. 2 tablespoons small-diced pickles or cornichons
  3. 1 tablespoon  vinegar
  4. 1 tablespoon capers
  5. 1 teaspoon  mustard
  6. Pinch  salt
  7. Pinch freshly ground black pepper

Place all the ingredients in a food processor or mini chopper fitted with a steel blade and pulse several times until the pickles are finely chopped and all the ingredients are well mixed but not pureed.

link of this recipe: http://www.dinacantina.com/new/details.php?IID=686