Ensure all your ingredients are at room temperature for the best emulsification.
In your blender or food processor, combine the large egg and the Dijon mustard (if using). Blend on medium speed for about 20 seconds until well mixed.
Pour in the freshly squeezed lemon juice and blend for another 10 seconds. This will enhance the flavor and help with the emulsification process.
With the blender running, slowly drizzle in the olive oil. Start with a very thin stream to allow the oil to emulsify fully with the egg mixture. This step is crucial for achieving the perfect creamy consistency.
Continue blending until the mayonnaise thickens and reaches your desired consistency. This usually takes about 30 seconds to 1 minute.
Once thickened, taste your mayonnaise. You can add a pinch of salt or more lemon juice if desired. Blend briefly to combine.
Transfer the homemade mayonnaise into your storage container and seal it tightly. It can be stored in the refrigerator for up to a week.
Equipment
Blender or food processor
Measuring Cups and Spoons
Spatula
Storage container
Notes
Use room temperature ingredients to ensure the mayonnaise emulsifies properly.
If the mayonnaise breaks, fix it by whisking in a new egg yolk and slowly adding the broken mayonnaise.
Customize your mayonnaise by adding garlic, herbs, or spices after blending.
Store mayonnaise in an airtight container in the refrigerator for up to one week.