Brown butter gives this sauce a nutty, roasted flavor, a big leap forward from standard white béarnaise. At Alfred's Steakhouse in San Francisco, the cooks use a whipped-cream siphon to turn the sauce into a velvety cloud.This recipe goes with: Grilled Steak Platter.

This Story Originally Appeared On sunset.com

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Recipe Summary

total:
1 hr 30 mins
Yield:
Makes about 2 cups (serving size: 2 tbsp.)
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Ingredients

Ingredient Checklist

Directions

Instructions Checklist
  • In a small saucepan, heat vinegar, tarragon, and peppercorns over medium-high heat until reduced by half, about 5 minutes. Strain into a small bowl and let cool.

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  • While vinegar is reducing and cooling, heat butter in a medium saucepan over medium-low heat until foam has mostly subsided and butter is the color of honey, 25 to 35 minutes. Strain through a fine-mesh strainer. Let cool to very warm but not scalding.

  • In a blender, blend egg yolks, 1 tbsp. vinegar reduction, and a pinch of salt on low speed. With blender running, in a thin stream (the width of spaghetti), pour in half of hot brown butter; then pour in the rest more quickly. Add 2 tsp. lemon juice, then 1 to 3 tbsp. cold water as needed to keep blender moving.

  • Taste and season with salt. To keep sauce warm up to 2 hours, pour into a metal bowl and nestle in a pot of steaming (not boiling) water, or aerate in a 1-pint whipped-cream siphon*, following manufacturer's instructions (sauce will stay warm and fluffy).

Chef's Notes

*The sturdy iSi Gourmet Whip whips both cold and hot mixtures ($150; a pack of 10 iSi cream charger cartridges, $15; williams-sonoma.com).

Make ahead: In bowl, up to 1 day ahead, chilled airtight; rewarm in a hot water bath as described above, whisking to loosen.

Source

Alfred's Steakhouse, San Francisco

Nutrition Facts

221 calories; calories from fat 98%; protein 1.1g; fat 24g; saturated fat 15g; carbohydrates 0.3g; sodium 21mg; cholesterol 119mg.
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