Season the chicken: Pat the chicken dry and season with salt and pepper on both sides.
Sear: In a large skillet, melt 2 tbsp butter and olive oil over medium-high heat. Sear the chicken until golden brown on both sides (4–5 minutes per side). Remove and set aside.
Garlic base: Melt the remaining 1 tbsp butter in the same pan. Add garlic and sauté 30 seconds until fragrant.
Make the sauce: Pour in chicken broth, scraping up any browned bits. Stir in heavy cream, Parmesan, and Italian seasoning. (Whisk in flour at this stage if you want the sauce thicker.)
Simmer with chicken: Return chicken to the pan, spoon sauce over the top, and simmer gently for 6–8 minutes until fully cooked (165°F internal temp).
Finish: Garnish with parsley or basil. Serve hot!
