# Ingredient List:
→ Bread Base
01 - 1 loaf Italian bread, sliced lengthwise
02 - 1/2 cup (1 stick) unsalted butter, softened
03 - 1 teaspoon garlic salt
→ Chicken Preparation
04 - 2 boneless skinless chicken breasts (about 1 pound), cut into 1/2-inch pieces
05 - 1/2 teaspoon garlic salt
06 - 1/2 teaspoon paprika
07 - 1/2 teaspoon kosher salt
08 - 1/4 teaspoon black pepper
09 - 1 tablespoon extra virgin olive oil
→ Alfredo Sauce
10 - 2 tablespoons unsalted butter
11 - 1 small yellow onion, diced (about 1/2 cup)
12 - 2 teaspoons garlic, minced
13 - 2 cups heavy whipping cream
14 - 2 cups Parmesan cheese, finely grated
15 - 1/2 teaspoon kosher salt
16 - 1/2 teaspoon black pepper
17 - 1/4 teaspoon crushed red pepper flakes
→ Topping
18 - 1 cup mozzarella cheese, shredded
19 - 1 cup white cheddar cheese, shredded
20 - Fresh parsley, chopped, for garnish
# Step-by-Step Instructions:
01 - Preheat oven to 400°F. Line a large baking sheet with parchment paper.
02 - Place the Italian bread halves cut side up on the prepared baking sheet. Spread softened butter evenly over both halves and sprinkle with garlic salt.
03 - Bake bread for 8-10 minutes until lightly golden and crisp. Remove from oven and set aside.
04 - While bread bakes, season chicken pieces with garlic salt, paprika, kosher salt, and black pepper.
05 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook for 3-4 minutes per side, until golden brown and cooked through (internal temperature 165°F). Transfer chicken to a plate and keep warm.
06 - For the Alfredo sauce, melt butter in a saucepan over medium heat. Add diced onion and cook 3-4 minutes until translucent. Stir in garlic and cook 30 seconds.
07 - Pour in heavy cream and bring to a gentle simmer (do not boil). Stir in Parmesan, salt, black pepper, and red pepper flakes. Continue stirring until cheese melts and sauce thickens slightly, about 3-5 minutes. Remove from heat.
08 - Spread about 3/4 cup of Alfredo sauce over each toasted bread half, reserving about 1/2 cup for serving. Top bread with cooked chicken, distributing evenly. Sprinkle with mozzarella and white cheddar cheese.
09 - Return bread to the oven and bake for 8-10 minutes, until cheese is melted and bubbly. For a golden top, broil 1-2 minutes, watching closely.
10 - Remove from oven and let rest 2-3 minutes. Garnish with chopped parsley. Slice and serve warm, with reserved Alfredo sauce on the side for dipping.
