Source Edition · Modern home-cook variation

Lime-Molasses Skirt Steak Fajitas

A bright, savory home-style variation with lime, vinegar, soy, a touch of molasses, cumin, peppers, and onions.

Juicy sliced skirt steak with seared red and green bell peppers, onions, flour tortillas, pico de gallo, and guacamole
Editorial image reviewed against this recipe; it is not evidence of a kitchen test.
EditionSource Edition
TraditionModern home-cook variation
Yield4–6 servings
Total time4–8 hr marinade + 25 min
TestingEditorially reviewed

Method

  1. Mix safely. Whisk lime juice, vinegar, soy, molasses, cilantro, garlic, cumin, and pepper. Reserve 2 tablespoons in a clean covered cup before the raw meat touches the rest.
  2. Marinate cold. Coat the steak with the remaining marinade and refrigerate 4 to 8 hours. Discard the used marinade.
  3. Cook the vegetables. Heat a heavy skillet or grill pan over high heat. Add oil, then sear the pepper and onion until browned but still lively. Transfer to a warm platter.
  4. Cook the steak. Pat the steak dry and grill or sear over high heat until browned and at least 145°F in the thickest portion. Brush only with the clean reserved marinade near the end.
  5. Rest and slice. Rest at least 3 minutes, identify the grain, and slice thinly across it.
  6. Serve. Arrange steak with the peppers and onions. Serve with warm flour tortillas, pico de gallo, guacamole, and lime.

Make it work

Reserve the basting portion before adding raw beef. Molasses can scorch, so use only a small amount and apply the clean reserve late. Drying the steak and giving the pan space are more important than adding extra liquid.

Food-safety note

Cook whole cuts of beef to at least 145°F in the thickest part and rest at least 3 minutes. Marinate under refrigeration. Discard marinade that touched raw beef, or boil it before reuse; reserving a clean portion before adding the meat is simpler.

Understand it

What defines this variation

Lime and vinegar add brightness, soy supplies salt and savoriness, molasses rounds the sharp edges, and cumin anchors the mixture in a familiar Tex-Mex register. Peppers and onions make this a later restaurant-and-home style rather than an early elemental fajita taco.

Know it

Where it fits

This owner-supplied newsletter recipe represents the way fajitas expanded in American home cooking: a named cut became a complete platter and, eventually, a broad cooking style. It is presented as one variation—not as the original form.

About this edition

Developed from the owner-supplied “Mexico Texas Fajitas” newsletter recipe. The unsafe instruction to spoon raw marinade onto cooking meat was replaced with a clean reserved portion. This is a Source Edition: independently rewritten and safety-reviewed, but not represented as Kitchen-Verified.

Sources

Where this edition comes from

Explore the complete fajita story and every variation