These eggs have been buried deep in the highly alkaline Utgaroarian soil around the many active geysers, where they are slowly cooked by the natural heat of the planet and take on a distinctive purple color and their prized bittersweet taste.
— In-Game Description
Utgaroar Millennial Eggs is a specific item of Foods in the world of Elite Dangerous.
Rare goods increase in value the further you travel from their point of purchase.