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1
For the caramelized onion yogurt: Cook onions, salt, sugar, and red pepper with the olive oil for 1-2 hours on low or medium-low until very soft but not blackened at edges.
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2
The pan should sizzle just a bit.
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3
Stir every 10 minutes or so to prevent browning on the bottom layer of onions.
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4
When onions are caramelized, combine with the garlic and yogurt.
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5
Taste, and add salt to your preference.
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6
For the steak: Rub the steak with all the seasonings, olive oil, and Worcestershire sauce.
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7
Let sit for 30 minutes or up to overnight.
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8
When youre ready to cook the meat, preheat a skillet for at least 10 minutes to medium-high with a drizzle of olive oil.
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9
When the pan is very hot, cook the steaks on all sides until medium or medium-rare, about 5 minutes per side for a 1-inch steak.
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10
Let the steak rest for 10 15 minutes, and very thinly slice against the grain for serving.
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11
For the tacos: To serve, top a tortilla or taco shell with the meat, veggies, mint, cheese, and yogurt sauce.
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12
Note: Yogurt sauce can be made up to 3 days in advance, and steak can be rubbed and marinated the night ahead.
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13
Then, you cook the steak and assemble tacos in no time!
