My Homemade Mayonnaise Recipe makes rich, creamy mayo in 5 minutes with 6 ingredients using a blender, food processor, hand mixer or whisk.
Add the egg, mustard, vinegar, lemon juice, and salt to a tall, narrow jar.
Place the immersion blender head firmly against the bottom of the jar, completely covering the egg mixture and blend on high for 30 seconds to combine.
Slowly start to pour the oil into the jar in a steady stream without moving the blender from the bottom of the jar, until a thick emulsion forms at the bottom without moving the blender, about 1 - 2 minutes
Once most of the oil has been added, slowly lift and lower the blender until all the oil has been incorporated and the mayonnaise is smooth and creamy.
Using the small bowl attachment for your food processor, add the egg, mustard, vinegar, lemon juice, and salt and process for 20 seconds.
With the processor running, very slowly pour in a thin steady stream until all the oil has been incorporated and you have thick mayonnaise.
Serve as a sandwich spread, dressing base or for any recipe that requires mayonnaise. Store in an airtight container in the refrigerator for up to 2 weeks.