Brown Butter Béarnaise Sauce
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.
How to Make It
Step 1
1
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.
Step 2
2
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.
Step 3
3
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.
Step 4
4
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).
Ingredients
1/2 cup Champagne vinegar
2 large sprigs fresh tarragon
1/2 teaspoon black peppercorns
1 pound unsalted butter
5 large egg yolks
Kosher salt
About 2 tsp. lemon juice
Directions
Step 1
1
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.
Step 2
2
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.
Step 3
3
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.
Step 4
4
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).
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