Preheat the oven to 350 degrees Fahrenheit.
Line a baking dish with several layers of non-stick foil.
Start with room temperature chicken pieces. Add a little salt, pepper, onion powder, smoked paprika, and smoked California chili pepper to each side.
Bake your chicken for 40 hour, turning over after 20 minutes. Spoon any excess liquid from the pan.
Generously, spoon your Homemade BBQ Sauce on one side of the chicken. Bake for 20 minutes.
Flip the chicken pieces over, and brush with more of the BBQ Sauce. Bake for an additional 20 to 25 minutes.