1. Begin by seasoning the boneless, skinless chicken breasts with salt, pepper, and your choice of spices like Italian seasoning.
2. Heat a combination of butter and olive oil in a skillet over medium heat.
3. Add the seasoned chicken breasts and cook until golden brown and thoroughly cooked, about 5-7 minutes per side. Remove from skillet and set aside to rest.
4. In the same skillet, add chopped onions and minced garlic. Sauté until softened and fragrant, being careful not to burn the garlic.
5. Pour chicken broth into the skillet to deglaze the pan, scraping up any browned bits to form the base of the sauce.
6. Lower the heat and gradually add cream cheese, stirring continuously until it melts smoothly into the broth.
7. For added flavor, consider mixing in optional ingredients like Dijon mustard or Parmesan cheese.
8. Allow the sauce to simmer gently until it thickens slightly, stirring occasionally.
9. If the sauce becomes too thick, add more chicken broth gradually until the desired consistency is reached.
10. Return the cooked chicken breasts to the skillet, submerging them in the creamy sauce to heat through.
11. Finish the dish with a sprinkle of fresh parsley or chives for added color and flavor.
12. Serve immediately, pairing with sides like garlic mashed potatoes, vegetables, or a fresh green salad for a complete meal.