Possibly one of the easiest condiments to make, providing you have a blender. You can make it by hand, but your arm will get tired.
- 1 large egg yolk
- 1 1/2 tsp lemon juice
- 1 tsp white wine vinegar
- 1/4 tsp Dijon mustard
- 1/2 tsp salt
- 3/4 cup neutral oil
Combine egg yolk, lemon juice, vinegar, mustard, and 1/2 teaspoon salt in blender. Pulse until well-mixed.
With blender running, very very slowly pour the first 1/4 cup oil into yolk mixture, a few drops at a time. Gradually add remaining 1/2 cup oil in very slow thin stream until thick. Cover and chill.