Mix your dry rub/spice blend together and pour it into a baking dish.

Place the chicken breasts in the same dish and massage the mixture well into the chicken breast fillets.

Cover the dish with aluminum foil and cook at 125 degrees Celsius (257 degrees Fahrenheit) (convection) for 3 hours.

The meat can now be pulled apart with two forks.

Serve it in a burger bun with, for example, coleslaw or together with mashed potatoes and a sauce made from the meat juices.