Crispy and garlicky chicken Caesar sandwich

Ingredients

• 2 ounces can oil packed anchovy fillets
• 3 cloves garlic minced
• 3 egg yolks
• 2 tablespoons lemon juice
• 1 teaspoon Dijon mustard
• 1 teaspoon worchestershire sauce
• 1/2 cup vegetable oil
• 3 tablespoons grated parmesan cheese
• 1 cup buttermilk
• 1/2 teaspoon salt
• 1/2 teaspoon ground black pepper
• 2 tablespoons hot sauce (optional)
• 1 large chicken breast, cut into two pieces (or two smaller breasts)
• 1 cup all-purpose flour
• 2 teaspoons salt
• 1 teaspoon ground black pepper
• 1/2 teaspoon cayenne pepper powder (optional)
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon paprika
• peanut oil or another neutral frying oil (2 inches deep in your pot/pan)
• 1/2 stick of butter
• 2 garlic cloves, minced or pressed
• 1 teaspoon parsley
• 1/4 teaspoon salt
• 1/4 teaspoon ground black pepper
• 2 French-style sandwich rolls (6-inches long)
• 1/2 to 3/4 cup Romaine lettuce, roughly chopped
• 1/4 cup red onion, thinly sliced
• 3 to 5 tablespoons Caesar dressing (from above)
• 2 crispy fried chicken breast pieces (from above)
• additional parmesan cheese (optional garnish)