by John Ash
No matter how skilled you are in the kitchen, emulsion sauces like hollandaise sometimes “break,” or separate. If this happens, you can try to correct it by whisking in a teaspoon or two of boiling water, a drop at a time. If that doesn’t work, put another egg yolk in a bowl and very slowly whisk in the broken sauce. Usually, the sauce will come back together with one of these methods.