Lupin Free Classic Béarnaise
Rich, glossy, and deeply aromatic with fresh tarragon and a bright hit of lemon, this classic French butter sauce is the kind of thing that makes a simple steak or roasted vegetable feel like a restaurant-worthy event. The technique is all about patience — a careful reduction of white wine vinegar, dry white wine, and shallots builds a savory, slightly tangy base before the egg yolks ever hit the bowl. Whisking the yolks over a gentle bain-marie until they thicken and hold their shape is the key step that gives the sauce its signature velvety body. Then the warm clarified butter goes in drop by drop, building an emulsion that's luxuriously thick and stable. Every ingredient here is straightforward and naturally free from lupin — no flour, no legume-based thickeners, no hidden fillers that sometimes sneak into restaurant or jarred versions of this sauce. The finishing touch of fresh chervil is optional but lovely, adding a subtle anise note that plays beautifully alongside the tarragon. Once you've made this from scratch, the bottled stuff simply won't cut it anymore.
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Learn more →Ingredients
4 servings
For the reduction
- 3 tbsp white wine vinegar
- 3 tbsp dry white wine
- 2 medium shallots, finely minced
- 1 tbsp fresh tarragon leaves, roughly chopped (for the reduction)
- ¼ tsp black pepper, coarsely cracked
For the sauce
- 3 pasteurized egg yolks
- 1 tbsp cold water
- 1 cup (2 sticks) unsalted butter, clarified
- 1 tbsp fresh tarragon leaves, finely chopped (for finishing)
- 1 tsp fresh chervil, finely chopped (optional)
- salt, to taste
- 1 tsp fresh lemon juice
Instructions
- 1
Clarify the butter: melt the butter in a small saucepan over low heat until the milk solids sink and the foam subsides, about 8–10 minutes. Skim the foam from the surface, then carefully pour the clear golden liquid into a heatproof measuring cup, leaving the white milk solids behind. Keep warm.
- 2
Make the reduction: combine the white wine vinegar, white wine, shallots, roughly chopped tarragon, and cracked black pepper in the small saucepan over medium heat. Simmer until the liquid is reduced to about 2 tablespoons, 4–5 minutes. Strain through a fine-mesh strainer into a heatproof bowl, pressing the solids to extract all the liquid; discard the solids.
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