Cook on high for 3 hours and turn down to low for another 3 hours or cook on low for approximately 8-10 hours. Each slow cooker is different so times will vary between slow cookers.
The dish is cooked when the meat is at the stage where it is tender and verging on falling apart.
To Serve
Serve as part of your favorite Mexican dish, such as burritos, or in a Mexican Salad. Try some Mexican Rice on the side.
Carb it up for carb lovers in your life by adding some heated up red kidney beans, corn kernels or black beans to the dish and serve theirs with rice.