Successful mayonnaise

- All the ingredients must be at room temperature.
- At start, drizzle the oil.
- If the oil and the yolk do not properly, add a teaspoon of hot vinegar, and whip vigorously.
- There's nothing to be done, it fails! Do not loose your temper, take another bowl, an egg yolk and use the failed mayonnaise instead of oil. Add it with care.
- If you like mustard, there is no risk of failing. Blend it with the egg yolk, wait for a couple of minutes and proceed with the traditional recipe.
- You can bring a failed mayonnaise back by whipping it with mustard as well.