This sandwich comes together in a few simple steps. Let’s dive into the process:

1. Begin by marinating the chicken breasts in buttermilk for at least 30 minutes, up to overnight. This step ensures the chicken stays juicy and tender.
2. In a shallow dish, combine the flour, garlic powder, onion powder, smoked paprika, salt, and pepper. Mix well.
3. In another dish, combine the Parmesan cheese and panko breadcrumbs.
4. Remove the chicken from the buttermilk, allowing excess to drip off, then coat each breast in the flour mixture.
5. Dip the coated chicken back into the buttermilk, then press into the panko mixture, ensuring an even coating.
6. In a large skillet, heat olive oil over medium-high heat. Once hot, add the chicken and cook for 4-5 minutes per side, or until golden brown and cooked through. Internal temperature should reach 165°F.
7. While the chicken cooks, toast the sandwich buns lightly in the oven or on a skillet for extra crispiness.
8. To assemble, spread a generous amount of Caesar dressing on each bun, add a layer of chopped romaine, then top with the crispy chicken.
9. Finish with the bun top, and your sandwich is ready to enjoy!

Pro tip: Let the chicken rest for a few minutes before slicing. This helps keep all those flavorful juices locked in.