Making this emulsified sauce at home is easier than you think.
Ingredients
1 large egg yolk
1 teaspoon dijon mustard
1 teaspoon fresh lemon juice
coarse salt
white pepper
1 cup grapeseed, sunflower, or safflower oil
Directions
Place egg yolk, mustard, lemon juice, 1/4 teaspoon salt, and a pinch of pepper in a bowl and whisk together until mixture is smooth and thoroughly combined.
Add the oil: Start with one drop at a time and whisk constantly until mixture begins to thicken. Continue adding oil in a very slow, steady stream while whisking until oil is incorporated and sauce is thick and emulsified.
