Fajitas

Disputed but well-documented in Texas: skirt steak (the diaphragm muscle) was a low-value cut paid to Mexican-American ranch hands in the Rio Grande Valley as part of their wages, called «faja» (strip/little belt) for its long thin shape. Sonny Falcón, the «Fajita King», sold the first commercial Tex-Mex fajita taco at a 1969 Diez y Seis festival in Kyle, Texas, then opened a stand at the 1973 Houston Astrodome. Ninfa Laurenzo's Houston restaurant popularized the sizzling-platter table presentation in 1973.

Skirt steak (the diaphragm) was a low-value cut handed to Mexican-American ranch hands in the Rio Grande Valley in lieu of higher wages — called «faja» (belt) for its long thin shape. Sonny Falcón sold the first commercial fajita taco at a 1969 Diez y Seis festival in Kyle, TX; Ninfa Laurenzo's Houston restaurant popularized the sizzling-platter table presentation in 1973.

It arrives loud — black cast-iron howling steam, the lime hit like an aerosol of citrus across the dining room. Meat is dark-crusted, ruby inside, with a chewy bite that skirt steak alone gives you. Peppers are slack and sweet from char; onions are sweet-bitter at the edges. You build the taco hot — tortilla absorbs the meat juice in five seconds. Benchmark: the platter must still be sizzling when the second tortilla goes down.

Two mechanisms. First, lime juice in the marinade tenderizes the strong skirt connective tissue through acid denaturation of the surface proteins (citrus is not a protease source the way papaya or pineapple is) — but only for 4-6 hours; longer and the surface goes mealy. Second, the sizzle isn't theater; the cast-iron platter must be over 220°C when the meat hits it, because the steam rising off the meat juice carries volatile lime, garlic, and Maillard aromatics into the air at the table — most of fajita's flavor experience is olfactory at the moment of plating.