Step 1

Add the egg, lemon juice, ground mustard and 1/4 cup of the oil into the bowl of the food processor. Pulse on low until combined.

Step 2

While the food processor is still running, very slowly add the remaining oil in small increments until all the oil is emulsified and the texture is smooth and creamy. This will take about 2-3 minutes.

Step 3

Taste your mayo and adjust the seasonings if you'd like.Serve your mayonnaise immediately or store it in the fridge until you're ready to use it.

Step 4

Add all of the ingredients to your immersion blender jar or another deep jar that will fit your immersion blender.

Step 5

Place the immersion blender into the bottom of the jar and turn the blender to low speed. Allow the blender to sit untouched for 30-40 seconds, or until the mixture is creamy and combined.

Step 6

Turn the blender to medium speed and begin to lift and tilt your blender up in a circular motion toward the top of the jar. Once all the oil is emulsified and the texture is smooth and creamy, tap the blender a few times on the top to push the oil down. This will take about 2-3 minutes.

Step 7

Taste the mayonnaise and adjust the seasonings if desired.

Step 8

Serve your mayo right away or keep it in the fridge until you're ready to use it.