Instructions:

Season the beef cubes with salt, pepper, cumin, oregano, chili powder, garlic, onion and bay leaves. Add just enough beef broth or water to cover the meat.

Bring to a boil then reduce heat and simmer for 2-3 hours until beef is very tender.
Remove meat from liquid and shred with two forks. Reserve liquid.

Dip tortillas in the hot beef liquid to soften. Fill with shredded beef and any other desired taco toppings.

Optionally, dip assembled tacos in the beef liquid before serving for extra flavor.