In a resealable plastic bag combine the chicken, buttermilk and 1 packet of taco seasoning. Seal and shake to mix together. Refrigerate and let marinate overnight.
In a large skillet, heat the olive oil over medium low heat.
Mix flour and the other packet of taco seasoning in a shallow dish or plate.
Remove chicken from refrigerator and remove chicken from marinade. Discard marinade.
Coat chicken with flour mixture and fry in skillet until cooked through and juices run clear, 15 to 20 minutes.
