- 2 free-range egg yolks
- 1 free-range egg
- 1 tbsp French mustard
- ½ lemon, juice only
- ½ tsp caster sugar
- 400ml/14¼fl oz vegetable oil
- Salt and freshly ground black pepper
- Blend all the ingredients except the oil in a food processor for 10-15 seconds, or until well combined. While the motor is running, pour the oil into the food processor very slowly until the well combined and the mixture is thick and glossy.
- Season, to taste, with salt and freshly ground black pepper.