Creating the Crispy Chicken Caesar Sandwich is simple. Just follow these steps for a delightful culinary experience:

1. Marinate Chicken: In a bowl, add the chicken breasts and cover them with buttermilk. Allow them to marinate for at least 15 minutes to enhance flavor and tenderness.
2. Preheat Oven: Preheat your oven to 400°F (200°C).
3. Prepare Breading: In a shallow dish, combine the flour, garlic powder, paprika, salt, and black pepper. In another dish, place the breadcrumbs.
4. Bread Chicken: Remove the chicken from the buttermilk, letting any excess drip off. Dredge each piece in the flour mixture, then dip back into the buttermilk, and finally coat with breadcrumbs.
5. Cook Chicken: Heat olive oil in a skillet over medium heat. Add the breaded chicken and cook for about 5-7 minutes on each side until golden brown. Transfer to a baking sheet.
6. Bake Chicken: Place the skillet with chicken in the preheated oven and bake for an additional 10-15 minutes, or until cooked through (internal temperature should reach 165°F or 75°C).
7. Prepare Sandwiches: While the chicken is cooking, toast the slices of bread until golden and crispy.
8. Assemble Sandwiches: Once the chicken is ready, layer each sandwich with chopped romaine lettuce, a generous drizzle of Caesar dressing, a few slices of crispy chicken, and a sprinkling of grated Parmesan cheese.
9. Add Pepper: Finish each sandwich with freshly cracked black pepper to taste.
10. Serve: Cut in half and serve immediately, ensuring that every bite is packed with delicious flavor!