How long should I marinate the chicken?
Marinate the chicken in the buttermilk mixture for at least 2 hours, or up to overnight in the refrigerator for deeper flavor.
Why double-dredge the chicken?
Double-dredging creates a thicker, crunchier coating that stays crispy longer. The first dredge adheres to the wet marinade; the second builds extra layers.
What oil temperature should I use for frying?
Heat oil to 350–375°F. Use a thermometer to maintain consistent temperature; too cool yields greasy results, too hot burns the coating before chicken cooks through.
Can I make this ahead?
Yes. Marinate the chicken up to 24 hours in advance. You can dredge the chicken up to 2 hours before frying; refrigerate on a wire rack so the coating sets.
How do I know when the chicken is done?
Fry until the coating is deep golden brown and the thickest tenderloin reaches 165°F internally. Tenderloins are thin, so cooking time is usually 6–8 minutes.