Season chicken breasts on both sides with salt, pepper, and garlic powder.
In a large skillet, melt butter over medium heat. Add the chicken and cook for 6–7 minutes per side, or until golden and cooked through. Transfer to a plate and cover to keep warm.
In the same skillet, add minced garlic and sauté for 30 seconds until fragrant.
Sprinkle flour over the garlic and whisk for 1 minute to form a roux.
Slowly pour in the chicken broth while whisking constantly to remove lumps.
Add heavy cream and Italian seasoning, stirring until smooth and slightly thickened.
Stir in the Parmesan cheese until melted and creamy.
Return chicken to the skillet and spoon sauce over the top. Simmer for 2–3 minutes until heated through.
Serve warm with pasta, mashed potatoes, or roasted vegetables.