This recipe uses an immersion blender and the plastic cup that comes with the immersion blender or another tall, skinny container similar to the plastic cup.
Place the egg, lemon juice, vinegar, Dijon mustard, and salt in the plastic cup.
1 large egg, 2 teaspoons freshly squeezed lemon juice, 1 teaspoon white wine vinegar, ¼ teaspoon Dijon mustard, ½ teaspoon salt
Pour the oil in. Then use an immersion blender to pulse the ingredients on the very bottom of the cup.
¾ cup avocado oil
Keep the blender near the bottom for several seconds while the ingredients mix and change in color. Slowly move the blender up the cup a bit to incorporate more oil into the mixture. Move the blender up and down until all the ingredients are well mixed and light in color.
Transfer the mayonnaise to the refrigerator until ready to use.
See post for tips and storage options.