- 2 large egg yolks
- 1 tablespoon warm water
- 1 tablespoon fresh lemon juice
- 3/4 teaspoon coarse salt
- 1/2 cup (1 stick) unsalted butter
- In a blender, combine egg yolks, water, lemon juice, and salt; blend until frothy.
- Heat butter in the microwave or in a small saucepan over medium until bubbly (do not let brown).
- With blender running, pour in hot butter in a very thin stream, blending until sauce is thick and emulsified.