Crock Pot Dr. Pepper Tacos

Another crock pot gem.  We just got back from a trip to Mexico and had lots of delicious, authentic mexican food.  Now these are in no way authentic, but they are at least a step up from regular ground beef tacos (which I also love).  Don't be fooled by the title, these puppies are SPICY!  Slow cooked beef in a savory, spicy sauce.  These tacos are great with my Mexican beans.

Crock Pot Dr. Pepper Tacos
adapted from The Pioneer Woman
2 lbs beef stew meat or a 2-3 lb roast
1 can Dr. Pepper soda
1/2 white onion, sliced
2 whole chipotles in adobo (adjust amount depending on how spicy you want your meat)
garlic, salt, pepper

1. Season beef liberally with garlic, salt and pepper.  Put meat in a lined crock pot. 
2. Add onions and chipotles.  Pour soda over the top.  Cover and cook 7-8 hours on low or 4-5 on high.  You will know it is done with the meat can be shredded easily.
3. Shred meat and return to juices.  Serve as tacos or burritos with your choice of toppings.

My favorite toppings:
shredded cabbage
peach salsa
queso fresco (mexican crumbly cheese)
sour cream