Chop up very fine twelve capers, one shallot, three small vinegar-pickles, and add one-half a tablespoonful of chives, with one tablespoonful of parsley. Place them in a bowl with a whole raw egg, a teaspoonful of ground English mustard, half a pinch of salt, and half a pinch of pepper. Incorporate well together, adding four table-spoonfuls of oil and four of vinegar, but keep the sauce sufficiently liquid. Serve when required.