This is not the first time I’ve said it: The messier a sandwich looks, the better it’ll be. Just one glance and you know that this Oh Boy Po Boy is nothing but crazy good.
Meanwhile, toss the thighs with a splash of oil and blackening seasoning, to taste. I recommend that you not be shy with the seasoning. Get the chicken well-coated.
Heat a medium skillet over high heat and add the chicken. Cook, stirring often, until chicken is done and measures 165 F. Remove from heat, let cool slightly then slice into thin strips. Keep warm.
Add the onion to the skillet with a splash of oil and saute for 20-30 minutes or until caramelized. Remove and keep warm.
Wipe out the skillet, reduce heat to medium and add the cheese. Melt, stirring occasionally.
Assemble sandwich by adding sliced chicken, peppers, onions, cheese.
Serve with plenty of napkins.
Blackening seasoning
Combine all ingredients. Store extra seasoning in an air-tight container.
Notes
You can also grill the chicken after tossing it with the oil and seasoning.