01 -
In a large mixing bowl or resealable bag, whisk together buttermilk, cayenne pepper, paprika, mustard powder, garlic powder, salt, and black pepper.
02 -
Submerge chicken breasts in the buttermilk mixture, ensuring each piece is fully coated. Cover and refrigerate for at least 2 hours or overnight for optimal tenderness.
03 -
In a shallow dish, thoroughly combine flour, cornstarch, mustard powder, paprika, dried parsley, onion powder, salt, and black pepper.
04 -
Remove marinated chicken breasts from the refrigerator. Let excess marinade drip off, then dredge each breast in the flour mixture, coating both sides evenly. Place breaded chicken on a separate plate.
05 -
Allow breaded chicken breasts to rest at room temperature for 10 minutes to help the coating adhere.
06 -
Pour vegetable oil into a large skillet to a depth suitable for shallow frying. Heat over medium-high heat until oil shimmers. Test readiness by sprinkling a little flour into the oil; if it sizzles immediately, the oil is ready.
07 -
Working in batches if necessary, carefully place chicken breasts into hot oil. Fry for approximately 7–8 minutes per side until deep golden brown and the internal temperature reaches 77°C.
08 -
Transfer cooked chicken breasts to a plate lined with paper towel to drain excess oil. Serve hot.