As this meal cooks very quickly, it is important to have all ingredients ready before heating your skillet.
In a heavy skillet heat the oil to almost smoking, add cubed steak, onions and jalapeno or serrano pepper.
If you have a piece of bone marrow add it now and continue to sear over medium high heat stirring constantly for 3 – 5 minutes or until the meat begins to get lightly charred and the onions turn translucent, and peppers begin to char.
Arrange the bone marrow with the marrow side up. Alternatively, if you are starting out with an uncooked piece of round streak, cube the meat and continue with searing the meat over high heat. This will take a few minutes longer than if you began with leftover grilled meat.
Add blended tomato, salt, freshly ground black pepper to taste and ground cumin (if using). Stir to combine. Cover and reduce heat to low, simmer for 10 – 12 minutes. Taste for seasoning and correct if needed.
NOTE: If you enjoy spicy food, add more serrano or jalapeno pepper…make this your own!
