Oats Free Béarnaise Sauce
Rich, glossy, and deeply aromatic, this classic French emulsion sauce is the kind of thing that turns a simple steak or roasted vegetable into something genuinely memorable. The base is a sharp reduction of dry white wine, white wine vinegar, shallots, and fresh tarragon — that concentrated hit of flavor is what separates a real béarnaise from anything you'd find in a packet. Clarified butter goes in slowly, drop by drop at first, building a sauce so silky and thick it coats the back of a spoon with a clean, satisfying line. Fresh tarragon folded in at the end keeps the herbal note bright rather than muddy, and a pinch of cayenne gives the whole thing a subtle, warming lift. For anyone navigating grain-free or oat-free eating, this sauce is naturally in the clear — every single ingredient here is whole, unprocessed, and completely free of any grain-based thickeners or fillers. It's a technique-driven recipe, but the steps are straightforward once you understand the double-boiler method and the importance of adding that butter gradually. Spoon it over grilled beef, poached fish, or steamed asparagus and watch it disappear fast.
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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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