Lupin Free Béarnaise Sauce
Few sauces feel as luxurious as a properly made béarnaise — silky, buttery, and fragrant with fresh tarragon in a way that makes even a simple grilled steak feel like a restaurant-worthy event. The process starts with a sharp, aromatic reduction of dry white wine, white wine vinegar, shallots, and tarragon that becomes the flavor backbone of the entire sauce. From there, clarified butter is whisked drop by drop into warm egg yolks until the whole thing transforms into something impossibly rich and creamy. The double-boiler method keeps the heat gentle and controlled, and cooking the yolks to 160°F means you're hitting the food-safety mark without sacrificing that smooth, velvety texture. For anyone navigating lupin sensitivities, this classic French sauce is naturally a safe choice — every ingredient here is straightforward, with no flour, legume-based thickeners, or hidden additives anywhere in the recipe. A pinch of cayenne and a finishing handful of fresh chervil round out the flavor with just enough brightness to cut through all that glorious butter. Spoon it over steak, asparagus, or poached fish and prepare to be very pleased with yourself.
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Learn more →Ingredients
4 servings
For the reduction
- 3 tbsp dry white wine
- 3 tbsp white wine vinegar
- 2 medium shallots, finely minced
- 1 tbsp fresh tarragon leaves, roughly chopped (for reduction)
- ¼ tsp black pepper, coarsely cracked
For the sauce
- 1 cup (2 sticks) unsalted butter
- 3 pasteurized egg yolks
- 1 tbsp cold water
- ¼ tsp salt, plus more to taste
- 1 pinch cayenne pepper
- 2 tbsp fresh tarragon leaves, finely chopped (for finishing)
- 1 tsp fresh chervil, finely chopped (optional)
Instructions
- 1
Combine the white wine, white wine vinegar, minced shallots, roughly chopped tarragon, and cracked black pepper in a small saucepan over medium heat. Bring to a simmer and cook until the liquid is reduced to about 2 tbsp, 5–7 minutes. Strain through a fine-mesh strainer into a heatproof bowl, pressing on the solids to extract all the liquid; discard the solids. Let the reduction cool for 2–3 minutes until no longer steaming.
- 2
Melt the butter in the small saucepan over medium-low heat, then increase the heat slightly and cook until the foam subsides and the milk solids settle to the bottom, about 5 minutes. Skim off any foam from the surface. Carefully pour the clear golden butter into a liquid measuring cup or small pitcher, leaving the white milk solids behind in the pan; discard the solids. Keep the clarified butter warm.
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