Ingredients

  • 2 large egg yolks
  • 2 tablespoons boiling water
  • 1 cup unsalted butter, melted and hot
  • 2 tablespoons freshly squeezed lemon juice
  • salt
  • red pepper, tiny pinch

Method

  • Put the yolks in a blender or food processor.
  • Blend on low speed for a couple of seconds, just to whisk the eggs.
  • With the machine running, slowly pour in the boiling water, then, (with the machine still running) very, very, VERY slowly pour in the hot melted butter.
  • Be patient- you must pour the butter in in the thinnest of streams, like fast drops, or the sauce will break.
  • Add the lemon juice, salt to taste and the cayenne.
  • If the sauce is too thick, add a bit more boiling water.
  • Will hold, sitting in a bowl of warm water, for hours.