Mayonnaise can be made by hand with a mortar and pestle, whisk or fork, or with the aid of an electric mixer or blender. Mayonnaise is made by slowly adding oil to an egg yolk, while whisking vigorously to disperse the oil. The oil and the water in yolks form a base of the emulsion, while the lecithin from the yolks is the emulsifier that stabilizes it. Additionally, a bit of a mustard may also be added to sharpen its taste, and further stabilize the emulsion. Mustard contains small amounts of lecithin. It is a process that requires watching; if the liquid starts to separate and look like pack-ice, or curd, it simply requires starting again with an egg yolk, whisking it, slowly adding the 'curd' while whisking, and the mixture will emulsify to become mayonnaise.
Mayonnaise en sachet