What ingredients are primarily used to make Aioli?

Aioli is a classic sauce that originates from the Mediterranean, primarily known for its rich flavor and creamy texture. The fundamental ingredients that define traditional aioli are garlic, olive oil, and sometimes an egg yolk. Garlic serves as the key flavoring agent, providing a pungent and aromatic characteristic that is essential to the sauce. Olive oil not only contributes to the smooth texture but also adds a fruity, rich flavor typical of Mediterranean culinary traditions.

In some variations of aioli, an egg yolk is included to help emulsify the mixture, ensuring a well-blended and stable sauce. The emulsification process is crucial for achieving the desired creaminess and consistency. This can differentiate it from other similar sauces that might rely on different bases or components.

The other options present a mix of ingredients that do not align with traditional aioli. Ingredients like tomato, onion, vinegar, or cream would lead to different types of sauces altogether, which are not considered aioli. Thus, the correct answer highlights the authentic composition that makes aioli a distinctive and beloved condiment.