Follow these simple steps to make your Crispy Chicken Caesar Sandwich:

1. Prepare Chicken: Begin by placing the chicken breasts in a bowl and covering them with buttermilk. Allow to marinate for at least 15 minutes.

2. Mix Dry Ingredients: In a separate bowl, combine flour, breadcrumbs, garlic powder, onion powder, salt, pepper, and paprika. Mix well.

3. Coat Chicken: Remove the marinated chicken from the buttermilk, allowing excess to drip off. Dredge each piece in the breadcrumb mixture, pressing lightly to ensure even coating.

4. Heat Oil: In a large skillet, heat enough oil over medium heat to cover the bottom of the pan.

5. Fry Chicken: Once the oil is hot, add the breaded chicken breasts. Cook for about 5-7 minutes per side until golden brown and cooked through. Use a meat thermometer to ensure the internal temperature reaches 165°F (75°C).

6. Prepare Sandwich Rolls: While the chicken cooks, toast the slices of bread or buns in a toaster or on a skillet until golden brown.

7. Assemble Ingredients: Spread Caesar dressing on the inside of each toasted bread slice. Layer chopped romaine lettuce generously over the dressing.

8. Add Chicken: Place the crispy chicken breast on top of the lettuce layer. Sprinkle with grated Parmesan cheese.

9. Finish Sandwich: If desired, add sliced tomatoes or avocado. Top with the other slice of bread or bun.

10. Serve: Cut the sandwich in half for easy eating, and enjoy your delicious creation!