In a large bowl, toss beef with Adobo seasoning to coat; set aside. To a blender, add enchilada sauce, bouillon, yellow onion, vinegar, garlic, cumin and oregano and blend until a smooth paste forms.
In large pot set over medium-high heat, heat oil until shimmering. Add enchilada mixture and bring to simmer.
Add seasoned beef, bay leaves, cinnamon stick and water. Bring to a boil, then cover, reduce heat to a simmer and cook, stirring occasionally, for 2 1/2 to 3 hours or until beef is tender. Discard bay leaves and cinnamon stick.
Using slotted spoon, transfer beef to cutting board and finely chop or pull apart using two forks. Skim fat from top of cooking liquid. Reserve 2 cups of cooking liquid for serving. Return pulled beef to pot with remaining cooking liquid and keep hot over low heat.