
Rich, glossy, and deeply aromatic, this classic French butter sauce is built entirely from savory, naturally sweet ingredients — no added sugar anywhere in sight. A sharp reduction of white wine vinegar and dry white wine forms the flavor backbone, balanced by shallots, cracked black pepper, and fresh tarragon, so every drop of complexity comes from real technique rather than sweeteners. The clarified butter gets whisked in slowly over a double boiler, creating that signature velvety texture that clings beautifully to steak, fish, or roasted vegetables. Fresh tarragon and a squeeze of lemon juice finish the sauce with brightness that feels indulgent without tipping into sweetness. It's the kind of recipe that looks intimidating but rewards patience — once you nail the slow butter drizzle and watch the sauce thicken into something silky and spoonable, you'll wonder why you ever reached for a bottled version. For anyone keeping a close eye on added sugars, this is a genuinely satisfying way to bring restaurant-level richness to the dinner table.
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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.
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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