Put raw chicken breast, salsa, and, if adding, the spices into the crockpot. Cook on low for 7-8 hours or high for 4 hours.
Cook on low for 7-8 hours or high for 4 hours.
When it's finished cooking, quickly shred the chicken into peices with two forks in the salsa and juices then squeeze lime into it.
Let the chicken continue to cook for about 10 minutes in the salsa. Salt and pepper to taste.
Spray an extra large sheet pan (or two large ones) with cooking spray. Add chicken and make sure you leave space on the pan otherwise it won't brown up.
Place sheet pan in the oven and broil the chicken for about 10 minutes or until a lot of the extra liquid has reduced and you have some brown and even some crispy pieces. Sprinkle fresh cilantro on top. Serve hot!
Store any leftovers in an airtight container in the fridge for up to 5 days.