i. Biography
Sebastián Mar is chef of X.O. At X.O, the work reads less like a fixed house style than a practice of assembly: place, curiosity, and close attention are brought together in service of a dining experience that values atmosphere as much as the plate. The result is a restaurant identity built on intention, discovery, and measured precision.
Coming Up
Today, Sebastián is chef of X.O, and the role keeps him inside a kitchen language that moves between Medellín’s immediate surroundings and wider questions of craft, context, and experience. The work is built as an ongoing process rather than a finished statement, with the restaurant used to test how food can carry place, meaning, and shift.
Where They Are Now
At this stage, Sebastián remains closely tied to X.O. and the world the restaurant has made. The room functions as the clearest expression of his current focus, where dining is set up to be experienced, not just eaten. In that frame, a meal becomes a sequence of impressions: part place, part imagination, built course by course.
Signature
Sebastián Mar is known for X.O.'s menu, which reflects the restaurant’s broader spirit of exploration. The menu is part of the reason X.O. Has become so closely associated with his name: it carries the sense of research and biodiversity that defines his approach, while leaving room for the unexpected. Through this lens, the dishes at X.O. Feel like part of a larger conversation — one that connects ingredients, setting, and the emotional cadence of dining. The restaurant’s identity is therefore Sebastián’s own, each reinforcing the other with clarity and purpose.
In Their Words “X.O. is a journey, it is biodiversity, it is exploration, it is research.” “I think what makes it unique are the moments that are lived.” Taken together, these words offer a clear read on how Sebastián frames the work: not as food alone, but as the shaping of an experience with depth and texture. The emphasis on journey and biodiversity points to a kitchen attentive to variety, discovery, and the living world, while the idea of “moments that are lived” places weight on the room, the pacing of the meal, and what remains after service ends.
Profile updated August 2026
FAQ
Asked of Sebastián
What is Sebastián Mar's current role?
Sebastián Mar is a chef at X.O. in Medellín.








