Combine the wet mix ingredients with the chicken in a bowl, ensuring it's fully coated. Cover and marinate in the fridge for a minimum of 4 hours (up to 24). Remove at least 30 minutes before frying to bring to room temperature.
3.3 lb (1.5kg) whole chicken2 cups (500ml) buttermilk1 tsp each paprika, cayenne pepper, white pepper, and onion powdersalt