Crack one egg in the bottom of the immersion blender cup or large glass container. While it can be made in a bowl, we recommend first-timers use a cup around the immersion blender for best results with emulsifying.
Add in 1 tsp Dijon Mustard, 1 tsp Lemon Juice and a pinch of salt.
Blend egg yolk and ingredients until just blended for 5-10 seconds.
Add 1/2 cup of oil onto the top of the egg mixture.
Force the immersion blender to the bottom of the cup and hold it on the bottom while blending for 30 seconds. Mayo will begin to come together.
Add the rest of the oil and continue blending until creamy. If homemade mayo is thicker than you would like, add a little bit of warm water and blend (start with a tsp.)
Store whole egg mayonnaise in an airtight container for up to 1 week.
Notes
Raw eggs- full article talks about raw eggs. Make or purchase pasteurized eggs if you want to eliminate any danger of salmonella by using a raw egg. Can a blender over an immersion blender be used? No- a stick or handheld blender must be used. A regular blender used for a milkshake will simply mix around the oil. It will never come together.