steps

1. 1.

   Prepare your live fire grill, ensuring a very high heat is established. Position a wok ring over the hottest area of the fire.

2. 2.

   In a small bowl, combine vinegar, soy sauce, aji amarillo paste, garlic, and ginger to create a flavorful sauce.

3. 3.

   Season beef cubes generously with salt and pepper.

4. 4.

   Set your long-handled wok on the wok ring to preheat until it smokes lightly.

5. 5.

   Add a small drizzle of oil, swirling to coat the wok's surface.

6. 6.

   Quickly add the beef cubes, stir-frying for approximately 30 seconds until browned on the outside but rare inside; remove beef and set aside.

7. 7.

   If needed, add more oil, then toss in the sliced onions and stir-fry for about 20 seconds.

8. 8.

   Incorporate the tomatoes, cooking for an additional 20 seconds.

9. 9.

   Return the beef to the wok, pouring the sauce around its edges.

10. 10.

    Toss everything swiftly, allowing the sauce to caramelize for about 30 seconds.

11. 11.

    Remove from heat and garnish with chopped cilantro and green onions. Serve hot with rice and crispy fries.