Warm butter emulsified into whisked yolks with lemon — the fragile, glorious mother behind eggs Benedict and béarnaise. Fully explained, entirely doable.
175 g
🧈 Butter ›
melted, warm not hot
Mise en place
Before you start
Yield: About 250 ml
Prep checklist
Butter — melted, warm not hot
Whisk yolks and the teaspoon of water in a heatproof bowl over barely simmering water until pale, doubled, and ribboning — 2–3 minutes. The bowl must never get too hot to touch.
💡
You are gently cooking the yolks to thickening (around 65°C) without scrambling them. If you see any graininess, pull the bowl off and whisk hard.
Off the heat, add the warm butter in a thin stream, whisking constantly — drop by drop for the first spoonful, then steadier as the emulsion takes hold.
Season with lemon, salt, and a whisper of cayenne. Hold near the stove (not on it) up to 1 hour, whisking now and then.
Taste before serving and adjust salt and acid — the last 30 seconds of seasoning matter more than any single ingredient.
Afterwards
Keep, reheat & pair
Storage
Airtight jar in the fridge, 3–5 days. Press plastic wrap onto the surface of starch-thickened sauces to stop a skin forming.
Freezing
Most sauces freeze 2–3 months; freeze in ice-cube trays for single portions. Emulsified butter/egg sauces don't freeze — they break on thawing.
Reheating
Reheat gently over low heat, whisking; butter- and egg-based sauces split when boiled. Loosen with a spoonful of warm water or stock.
Make ahead
Most sauces keep 3–5 days refrigerated and freeze in ice-cube trays for instant single portions. Emulsified butter sauces are best made within the hour.
Wine pairing
Follows the dish it dresses.
Beer pairing
Follows the dish it dresses.
On the plate
Serve it with
Garnish
A final swirl of butter or oil
Can I use a blender?
Yes — blender hollandaise (yolks + lemon blitzed, hot butter streamed in) is nearly foolproof and 90% as silky. Escoffier isn't watching.
When it goes sideways
Troubleshooting
The sauce broke into oily puddles. Too much fat too fast, or too much heat. Whisk a tablespoon of warm water in a clean bowl and beat the broken sauce into it a spoonful at a time — you're starting a new emulsion and feeding it the old one.
It's too thick. Thickness means crowded, not broken — loosen with warm water a teaspoon at a time.
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