# What You Need:
→ Base
01 - 1 large egg, at room temperature
02 - 1 tablespoon Dijon mustard
03 - 1 tablespoon white wine vinegar or lemon juice
→ Oil
04 - 1 cup neutral oil such as sunflower, canola, or light olive oil
→ Seasoning
05 - 1/2 teaspoon fine sea salt
06 - 1/4 teaspoon freshly ground black pepper, optional
# How-To Steps:
01 - Place the egg, Dijon mustard, vinegar or lemon juice, salt, and black pepper, if using, into a tall, narrow blending container intended for immersion blender use.
02 - Pour the neutral oil gently on top of the other ingredients in the container without disturbing them.
03 - Position the immersion blender at the bottom of the container and switch it on. Let it blend for approximately 10 seconds until the mixture visibly begins to emulsify and thicken.
04 - Slowly lift the immersion blender, moving it gently up and down to incorporate all the oil evenly. Blend until the consistency is thick and smooth, about 30 seconds.
05 - Taste and adjust seasoning if necessary. Transfer the mayonnaise to a clean jar, seal with a tight-fitting lid, and refrigerate immediately.
06 - Keep refrigerated and use within one week for best quality.