Aioli is very similar to mayonnaise and is found primarily in Spain, but also in the Provence region of France, Italy and Malta. Like mayonnaise, one of the French mother sauces, aioli is an emulsion of oil and other water soluble ingredients. It is a daughter sauce like tartare, Marie rose and Elizabeth. Mayonnaise is made with vegetable oil and egg yolks, however Spanish aioli is traditionally an emulsion of olive oil and garlic. In France, it is typically made with raw garlic, extra virgin olive oil and eggs or egg yolks. Over the years other flavours have been added, but bacon seems to be a very modern variation.