Chef John's Butterless Bearnaise Sauce

Ingredients

• •2 egg yolks
• •1/2 teaspoon freshly ground black pepper, or to taste
• •2 teaspoons tarragon Dijon mustard
• •1 teaspoon tarragon vinegar
• •1 teaspoon water
• •1 pinch salt

Steps

1. 1Whisk egg yolks, black pepper, tarragon Dijon mustard, tarragon vinegar, water, and salt in a metal mixing bowl or small saucepan. Place over low heat and whisk until mixture foams, small wisps of steam appear from the sauce, and sauce is hot and thick, 1 to 2 minutes. Raise and lower the pan over the heat to increase or reduce heat.
2. 2Remove from heat and whisk a few more seconds to make sauce slightly fluffy. Serve immediately.