STRABO, GEOGRAPHY 3.3.7.12

οἱ δ᾽ ὄρειοι τά δύο μέρη τοῦ ἔτους δρυοβαλάνῳ χρῶνται ξηράναντες καί κόψαντες, εἶτα
ἀλέσαντες καί ἀρτο ποιησάμενοι ὥστ᾽ ἀποτίθεσθαι εἰς χρόνον. χρῶνται δέ καί ζύθει:  οἴνῳ δέ
σπανίζονται, τὀν δέ γινόμενον ταχύ ἀναλίσκουσι κατευωχούμενοι μετά τῶν συγγενῶν:
ἀντ᾽ἐλαίου δέ βουτύρῳ χρῶνται

The mountain-people use acorns which they dried and chopped during two portions of the year, then they grind it and make into bread, so that they stow it away for the year. They also use beer. They have little wine, and they use that which they have quickly by partying with their kinsfolk. They also use butter instead of olive oil.

Background
A description of the inhabitants of Spain (Iberia).

Commentary
It is clear that the modern Spanish has very little in common with their descendants’s gourmet experiences. Acorn-bread and butter tapas washed down with beer? I don’t remember El Bulli having that on their menu! (not that I have ever been there)

Author’s Note
Strabo (64/63 BCE-24 CE)
World’s first travel blogger.