Recipe(tried): Homemade Copycat Best Foods - Hellman's Mayonnaise (using immersion blender)

HOMEMADE COPYCAT BEST FOODS - HELLMAN'S MAYONNAISE
(using immersion blender)

1 whole egg, medium or large size
1 Tablespoon lemon juice (bottled ok)
1 teaspoon distilled white vinegar
1 teaspoon dry regular mustard
1/4 teaspoon table salt
pinch ground white pepper
1 cup vegetable oil (I use (canola), room temperature

Break egg into bottom of 1-quart canning jar or other tall narrow jar that allows you to immerse the mixing blades of an immersion blender all the way to the bottom of jar. The jar should be only slightly wider than the end of the immersion blender.

Add lemon juice, distilled white vinegar, dry regular mustard, table salt and ground white pepper.

Add 1 cup of room temperature vegetable oil. (Olive oil is too strong in flavor and is not recommended for this recipe.)

Place mixing blades of immersion blender (turned off) all the way to the bottom of the jar, pressing down over the egg.

Turn immersion blender on HIGH SPEED, hold in place at bottom of jar for about 5-seconds until you see mayonnaise form under immersion blender's mixing blades.

Slowly pull immersion blender upward until the mixing blades
reach THE top of jar, taking about 5 more seconds. The immersion blender will turn the oil into mayonnaise as it is pulled slowly to the top of the jar. Turn off immersion blender.

After chilling in the fridge, this mayonnaise gets slightly thicker and tastes very much like Best Foods - Hellman's Mayonnaise.

Makes about 1 1/3 cups of mayonnaise.