Vinaigrette Classique — French Oil and Vinegar Dressing

Ingredients

• 1 tsp Dijon mustard
• 30 ml red wine, sherry, or champagne vinegar, tasted alone before use; selected to complement the dish
• 90 ml neutral or extra-virgin olive oil, streamed in gradually during whisking
• 1 pinch fine sea salt, dissolved in the vinegar before oil is added
• 1 pinch freshly ground white pepper

Method

1. 1
   Place the vinegar in a bowl. Add the fine sea salt and stir until fully dissolved. Salt will not dissolve in the oil phase; it must enter the dressing through the acid. The liquid should taste seasoned, not merely sharp.
2. 2
   Add the Dijon mustard to the acidulated vinegar. Tilt the bowl to approximately 30 degrees. Whisk in a rapid figure-eight motion until the mustard is fully incorporated and the mixture appears slightly thickened and cohesive.
3. 3
   This is where the dish lives or dies. Stream the oil in slowly — drop by drop at first, then in a thin, steady thread — whisking continuously in the figure-eight throughout. The fine droplet dispersion achieved here determines whether the dressing coats leaves evenly or breaks on contact. The finished vinaigrette should appear briefly homogenous, lightly opaque, and viscous enough to coat the back of a spoon without pooling.
4. 4
   Season with freshly ground white pepper. Taste: the dressing should read bright and round, without puckering the palate. Adjust the acid-to-oil balance if required, holding the 3:1 ratio as a baseline rather than a fixed rule.
5. 5
   Bring the vinaigrette to approximately 18°C before service. Re-whisk vigorously immediately before dressing the salad — separation is correct and expected. A lettuce leaf drawn through the finished dressing should hold a fine, even film with no pooling and no greasiness.