Crock Pot Barbacoa Beef and Killer Spicy Nachos

Ingredients (18)

• 5 canned chipotle peppers plus all the adobo sauce with it
• 1 bunch cilantro, chopped
• 1 red onion, peeled and cut into large chunks
• 1 head garlic, peeled and cloves smashed
• 2 teaspoons ground cloves
• 1 tablespoon kosher salt
• Juice of 4 limes
• 1/2 cup cider vinegar
• 5 dry bay leaves
• 5 to 7 pounds roast beef
• 4 to 6 cups beef stock
• Tortilla chips, enough to cover a medium sized baking pan
• Shredded monterey jack or pepper jack cheese (the beef is spicy, so if you aren't a huge fan of spice, use monterey jack)
• Barbacoa
• Sour Cream
• Salsa
• One lime
• Chopped Cilantro