These slow cooker barbacoa-style beef tacos are a delicious and easy way to enjoy tender, flavorful meat in the comfort of your own home. The beef is slow-cooked with a blend of aromatic spices and chipotle peppers in adobo sauce, resulting in a melt-in-your-mouth texture and a smoky, slightly spicy taste. Serve the shredded beef in warm corn tortillas with your favorite taco toppings for a satisfying meal.