Gazpachuelo

Gazpachuelo is a soup originating in Málaga, Spain, and is a typical fisher's dish, consisting of mayonnaise, garlic, egg yolk, and olive oil. The egg white is added to thicken the mixture, along with cubed potatoes. Although it is consumed hot, gazpachuelo owes its name to the fact that it contains the four basic ingredients of gazpacho: bread, garlic, oil, and water. The bread is dipped into the soup. It is a typical dish of the lower classes because of the low cost of its basic ingredients. Variations of the soup include adding shellfish, peeled shrimp, or whitebait.

Source: Wikipedia