Béarnaise sauce

1. 1

   Clarify the butter by melting it in a small, heavy-based saucepan over a low heat. When the butter is foaming, remove the pan from the heat and leave it to stand for a few minutes so that the white solids sink to the bottom of the pan. Sieve the butter through a fine sieve and discard the solids.

2. 2

   Pour the vinegar into a non-reactive saucepan. Add the shallots, chopped tarragon and salt, to taste. Heat gently over a medium heat until the volume of liquid has reduced by more than half. Strain and set aside until completely cooled.

3. 3

   Lightly beat egg yolks with one teaspoon of water. Stir the egg yolk mixture into the cooled vinegar, then add the lemon juice.

4. 4

   Pour the mixture into a bowl suspended over a pan of simmering water (do not allow base of the bowl to touch the water). Whisk constantly until the sauce has thickened enough to coat the back of a spoon and has increased in volume.

5. 5

   Remove the bowl from the heat and slowly pour in the clarified butter in a steady stream, whisking continuously, until the mixture is thick and smooth. Fold in the tarragon leaves and season, to taste, with salt and freshly ground black pepper.

1 serving ≈ 75 g

Nutrition values are estimates. - means data is unavailable.