Place chicken breasts in the bottom of the crock pot. Pour in chicken broth. If it doesn't cover the chicken, you may add a little bit of water. Cook on low 8 hours, or high 4-5 hours. Check for tenderness.
In a saucepan, pour 2 cups of broth from crock pot. Add 2 packages gravy mix and stir until it thickens, about 2 minutes. If you like you can make gravy from scratch, using the crock pot broth.
Remove your chicken from the crock pot and shred it. Add it to the gravy and mix it all together. Serve over mashed potatoes or noodles. (I used instant mashed potatoes) Add salt and pepper to taste.