Essentially, making carnitas in a Crock Pot is very similar to making it in Instant Pot but it will be cooking for 6-8 hours. Place pork shoulder in a Crock Pot. Add diced onion, jalapenos, smashed garlic, and bay leaves. In a mixing bowl, combine chicken broth, juice from limes, juice from oranges, oregano, cumin, chili powder, and salt. Pour the mixture over pork and veggies. Cover the Crock Pot with a lid and cook on LOW for 6-8 hours or on HIGH for 4-6 hours. Once it's done, take meat out into a mixing bowl and gently shred it with two forks. (Save some broth from cooking pork in a separate container.)