Traditionally, an aioli should be made with lots of garlic and extra virgin olive oil. If you find the flavor too strong, you can use half olive oil and half vegetable oil (and a little less garlic if you must).
Ingredients
Preparation
Using a mortar and pestle, pulverize the garlic and salt to a smooth paste. (If you don't have a mortar and pestle, smash the garlic with the flat side of a chef's knife or a garlic press.) If your mortar is too small to whisk the entire amount of oil in (or you don't have one), transfer the mashed garlic and salt to the bowl of an electric mixer or a medium stainless-steel bowl, and whisk in the egg yolk by hand. Slowly drizzle in the olive oil, drop by drop, whisking constantly. As the mixture begins to thicken, add a teaspoon of vinegar, a teaspoon of lemon juice, and a teaspoon of warm water. Once you've added almost half of the oil, place the bowl in the mixer fitted with a whisk attachment and mix on medium speed. Or continue to whisk in the oil by hand. Pour the oil in a slow, steady trickle, scraping down the sides of the bowl as necessary. As the mixture thickens, add a little more of the lemon juice and water, and continue whisking until the remaining olive oil is completely incorporated and the sauce is thickened. Season with lemon juice and zest, and salt to taste.
