Heat the avocado oil in a large cast iron skillet over medium heat.
Pour the cornstarch, sea salt, black pepper, and chicken pieces into the gallon bag. Shake the bag to fully coat the pieces of chicken with cornstarch.
Place the chicken into the hot oil in batches- do not over crowd the skillet.
Fry for 2-3 minutes per side or until golden brown. Once crispy, remove the pieces to the 13x9 baking pan.
In a large mixing bowl, combine frank's red hot, brown sugar, garlic powder, and sea salt.
Pour the sauce over the top of the crispy chicken pieces and bake for 45 minutes. Every 15 minutes, remove from the oven and gently stir to coat the chicken pieces with sauce.
Remove the baking pan from the oven and allow to cool for 5 minutes before serving.