01 - Preheat oven to 400°F. Position the rack in the center.
02 - Arrange three stations: a plate with all-purpose flour, a bowl with beaten eggs, and a plate combining panko breadcrumbs, grated Parmesan, garlic powder, smoked paprika, salt, and black pepper.
03 - Dredge each chicken breast in flour, shaking off excess. Dip into beaten eggs, then press firmly into the breadcrumb mixture, ensuring an even, thorough coating on all sides.
04 - Heat olive oil in a large ovenproof skillet over medium-high heat. Sear the breaded chicken breasts for 2 to 3 minutes per side until golden brown and crisp.
05 - Transfer the skillet to the preheated oven. Bake for 12 to 15 minutes until the chicken reaches an internal temperature of 165°F.
06 - While the chicken bakes, melt butter in a saucepan over medium heat. Add minced garlic and cook until fragrant, about 1 minute. Stir in heavy cream, chicken broth, and grated Parmesan. Simmer gently, stirring continuously, until the sauce thickens, about 3 to 4 minutes. Season with Dijon mustard, salt, and pepper to taste.
07 - Remove the chicken from the oven. Spoon the creamy sauce generously over each breast. Garnish with chopped fresh parsley and serve immediately.