Whisk the yolks with a little water and acid over gentle steam until they thicken before any butter goes in. If the bowl gets too hot the yolks seize and scramble; low, steady heat and constant whisking keep the sauce smooth and pourable.
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Published July 2026 · Sourcing verified 5 Jul 2026
Prep10 min
Cook5 min
Makesabout 1 cup
CuisineFrench
Cook it with
No-cook
Part One
The Ingredients — and where to get them
Egg yolks
Fresh yolks are the emulsifier and the body. Deep-gold pasture yolks give a richer color.
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