Sauce for Boiled or Baked Fish.

Put the water into the inner saucepan, chop the anchovies and shallot, and put in with the pepper and salt. Boil two minutes, and strain back into the saucepan when you have rinsed with hot water. Now add the flour wet smooth with cold water, and stir until it thickens; put in the butter by degrees, and when it is thoroughly melted and mixed, the vinegar; lastly, the capers and a little nutmeg.