Place the beef cubes, potato cubes, diced onion, and minced garlic directly into the slow cooker.
Add the chopped chipotle peppers, adobo sauce, beef broth, diced tomatoes with their juice, cumin, smoked paprika, salt, and black pepper.
Stir everything together until the spices and tomatoes are evenly distributed among the meat and potatoes.
Cover and cook on low for 8 hours, until the beef is fork-tender and the potatoes are soft.
Ladle into bowls and sprinkle with the chopped cilantro before serving.