1950s and dating
In Uruapan..are broken into small pieces and heated\ quickly in a thick syrup of piloncillo, the raw sugar of Mexico.These of Veracruz are very much like the churros of Spain, but flavored with aniseeds, and served with a syrup." ---The Cuisines of Mexico, Diana Kennedy [Harper Row: New York] 1972 (p.Dozens of Tex-Mex restaurants sprang up in Paris, and the trend spread across Europe and on to Bangkok, Buenos Aires and Abu Dhabi.
If one is out on an all-night binge--a juerga, as it is called--it is the custom to end the evening by eating Churros and hot chocolate at the churreria, or churro store, which opens by dawn." ---The Foods and Wines of Spain, Penelope Casas [New York: Knopf] 1982 (p. Make a depression in the middle of each and fill with chichiarrones. ed.) iii.81 Burritos in the northern part of Mexico and in the southwestern part of the United States are quite different.Dictionaries and food history sources confirm the first print evidence of the term "Tex Mex" occured in the 1940s.Linguists remind us words are often used for several years before they appear in print. "Tex-Mex food might be described as native foreign food, contradictory through that term may seem, It is native, for it does not exist elsewhere; it was born on this soil.80-1) [1970s] "In the good old days, Texans went to "Mexican restaurants" and ate "Mexican food." Then in 1972, The Cuisines of Mexico, an influential cookbook by food authority Diana Kennedy, drew the line between authentic interior Mexican food and the "mixed plates" we ate at "so-called Mexican restaurants" in the United States.Kennedy and her friends in the food community began referring to Americanized Mexican food as "Tex-Mex," a term previously used to describe anything that was half-Texan and half-Mexican.