I cobbled this recipe together because of a grocery store trip. I found some frozen boneless chicken thighs, and was trying to figure out what to do with them. So I decided to just throw them in the crockpot, still frozen, with some sliced onions and BBQ sauce. It's such a simple recipe, but you're left with some nice pulled chicken for some super good sandwiches.
Get out the crockpot. Layer with BBQ sauce, onion, then chicken. Do 2 or 3 layers.
Cover. Heat for 4 hours on high or 8 hours on low. You know your crockpot. Adjust as necessary.
When the chicken is done. Turn off crockpot. Take out chicken and pull apart with two forks. It will fall apart easily!
Empty out all of the juice and sauce from the crockpot and wipe clean. Put the pulled chicken in the cleaned crockpot with about 1/2 cup of bbq sauce. Heat and serve!