Juice the lime. Peel the garlic. Halve the avocados and remove the pits. Scoop out the avocado flesh and transfer it to a blender cup with all the other ingredients.
Use an immersion blender or hand blender to blend until smooth, starting at a low speed. Add a teaspoon at a time of lime juice or oil to thin the aioli if necessary, until it reaches a creamy dip consistency.
Notes
No immersion blender: Use a mini food processor or blender, or make it by hand by mincing the garlic and mashing the avocado with a fork until it’s as smooth as possible, then mix all the ingredients together.To keep from browning: Drizzle a little extra lime juice over the entire top of the aioli and don’t stir it. Place plastic wrap directly on the surface of the aioli before refrigerating tp create a barrier.Storing: Avocado aioli will last for 3-4 days when stored covered in the refrigerator. However, for best taste and appearance, eat it as soon as possible, preferably immediately.