50 MILES NORTH OF AUSTIN lie the remains of a gravel floor and wall. While it may seem unassuming, it’s what’s left of the oldest-known house in North America. Just outside the home is a cooking site strewn with the ancient traces of meals cooked with fire. This is where the history of what can be called Texas Mexican food begins, and where it gets its character as comida casera, or home-cooked food.The house is one of the extraordinary findings at the Gault Archaeological Site. Between 1999 and 2002, researchers recovered an astonishing 1.4 million artifacts in the area, among them the house floor, which researchers speculate could date back as far as 15,000 years. The burnt rocks outside are even older, at 20,000 years.
Source: Long Before Tex-Mex, a 15,000-Year-Old Cuisine Left Its Mark – Gastro Obscura