01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly grease it.
02 - In a shallow bowl, whisk together eggs and milk. In a separate bowl, mix Parmesan cheese, panko breadcrumbs, garlic powder, Italian herbs, salt, and black pepper.
03 - Pat chicken breasts dry. Dip each breast into the egg mixture, then coat thoroughly in the Parmesan-panko mixture, pressing gently to adhere.
04 - Heat olive oil in a large skillet over medium-high heat. Sear chicken breasts for 2-3 minutes per side until golden brown. Transfer to the prepared baking sheet.
05 - Bake chicken in the preheated oven for 15-18 minutes, or until cooked through (internal temperature 165°F).
06 - While the chicken bakes, melt butter in a saucepan over medium heat. Add minced garlic and sauté until fragrant, about 1 minute.
07 - Sprinkle flour over the garlic and stir for 1 minute. Gradually whisk in chicken broth and bring to a simmer.
08 - Stir in heavy cream and grated Parmesan. Simmer, stirring, until thickened (3-4 minutes). Season with salt and pepper to taste. Stir in parsley if using.
09 - Serve the Parmesan crusted chicken hot, generously topped with creamy garlic sauce.