Ingredients: 1 egg yolk
Ingredients: 1–2 teaspoons Dijon mustard
Ingredients: 1 tablespoon white wine vinegar or lemon juice
Ingredients: 1/2 teaspoon salt
Ingredients: 1/4 teaspoon black pepper
Ingredients: 1 to 1 1/4 cups neutral oil (canola/vegetable), plus more as needed
Optional: 1 teaspoon water (if mayo gets too thick)
Optional: 1 teaspoon sugar (if desired)
In a bowl, whisk egg yolk, Dijon mustard, vinegar/lemon juice, salt, and pepper until smooth
Slowly drizzle in the oil while whisking continuously (start with a few drops at first)
Keep whisking and gradually increase to a thin stream until the mixture thickens and becomes creamy
If too thick, whisk in 1 teaspoon water at a time
Taste and adjust salt and lemon/vinegar as needed
Transfer to a clean jar and refrigerate immediately
Use within 3–5 days