Step 1

Add all of the ingredients, except the bay leaves, to a slow cooker.

Step 2

Use tongs to gently mix it all together. Then add the bay leaves, and cover. Cook on low for 8 to 9 hours, or on high for 4 to 5 hours. The beef should fall apart easily when shredded with a fork. If not, cook it a bit longer.

Step 3

Remove the beef to a cutting board and shred it with two forks.

Step 4

Place the shredded beef back in the slow cooker, give it a stir, and let it simmer in the juices.

Step 5

Use tongs to remove a serving of barbacoa from the slow cooker, top it on a tortilla, and garnish with your favorite Mexican toppings.