Mayonesa
Homemade Spanish mayonnaise simply made with olive oil, egg and a touch of lemon juice. It is used for many dishes, including ensaladilla rusa, the Spanish version of Potato Salad. It is still made fresh (with the help of a hand mixer or food processor) and poured directly into the dish being prepared.
Ensaladilla Rusa

LINK for Ensaladilla Rusa or Spanish Potato Salad
(see explanation as to why it has a russian name)
Mayonesa
(recipe for Mayonesa below photos and explanation)

Mayonesa was invented by the Menorcans (not the French).  Menorca is part of the Balearic islands in the Mediterranean near Catalonia aka Catalunya. Catalan and Spanish are the two official languages of Menorca aka Minorca. 

LINK to homemade Mayonesa or Spanish Mayonnaise

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