Ingredients

  • 2 - 2 1/2 lbs beef flank steak or 2 -2 1/2 lbs skirt steaks
  • 1 onion, chopped
  • 1/3 cup olive oil
  • 1/4 cup vinegar
  • 1 1/2 teaspoons oregano
  • salt and pepper, to taste
  • 3 tomatoes, seeded and chopped
  • 1 onion, thinly sliced
  • 3 serrano chilies, minced
  • 2 avocados, chopped

Method

  • Add the beef, onion and salt to a large pot and add water to cover. Bring to a boil, reduce heat to medium-low and simmer for 1 1/2 to 2 hours, or until meat is very tender.
  • Remove the meat and reserve the stock for soup or other recipes. Shred the meat with your fingers when it is cool enough to handle.
  • Add the olive oil, vinegar, oregano, salt and pepper to a large bowl and whisk together.
  • Add the tomatoes, sliced onion and chiles and toss together.
  • Set a side for a few minutes to let the vegetables marinate.
  • Gently toss the shredded beef and avocados with the marinated vegetables and adjust seasoning.
  • Spread on a serving platter and serve chilled or at room temperature with warm tortillas.