1tbswhite vinegar/white wine vinegar or pickle juice
1tbslemon juice
1tbsdijon or yellow mustard
1pinchsalt
1pinchground white pepper
Instructions
Crack egg into a tall narrow container
Add all other ingredients
Place immersion/stick blender at the base of the container over the egg yolk
Mix on high speed for 10 seconds
Once you can see the ingredients at the very base of the container have mixed well, aerate by holding down the power button and bring the blender almost to the surface and then back down to the base again. Continue to do this until all ingredients are mixed well.