- Chop six shallots, put them in a pan with a quarter of a glass of vinegar.
- Reduce and pass through a sieve.
- In another pan put three egg yolks.
- Add 1 Tbs. of butter to the water bath.
- After, add it to the essence of shallot.
- Lastly, some meat jelly and lemon juice.
- It does not has to boil.