Ingredients
- /2 cup dry white wine
- tablespoons tarragon vinegar
- tablespoons minced shallots
- /2 teaspoon ground white pepper
- sprigs fresh tarragon, chopped
- sprigs fresh chervil, minced
- sprigs fresh parsley, minced
- egg yolks
- cup hot melted butter
Instructions
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Step 1
Start by simmering the wine, vinegar, shallots, pepper, tarragon, chervil, and parsley together in a small saucepan over medium-high heat. Let it bubble until only about 2 tablespoons of liquid remain, then strain the reduction into a large heatproof bowl and set aside. Next, set up a double boiler by placing that bowl over a pot of barely simmering water. Whisk the egg yolks into the reduction, and keep whisking—I find a figure-eight motion works best—until the mixture is pale, thick, and forms ribbons when you lift the whisk. Immediately remove from heat. Now comes the magic: while whisking vigorously, drizzle the hot melted butter in a slow, steady stream. Don’t stop until every drop is incorporated and the sauce turns luxuriously creamy. Serve right away, or keep it warm over very gentle heat for a short time, whisking occasionally to maintain that silky texture.