Instructions:

1. Preheat your oven to 375°F (190°C).
2. In a shallow dish, mix together the flour, salt, and black pepper. Dredge the chicken breasts in the mixture, shaking off any excess.
3. In a large skillet, melt the butter with the olive oil over medium-high heat. Add the chicken breasts and cook for 3-4 minutes on each side, or until golden brown.
4. Transfer the chicken to a baking dish and place in the preheated oven. Bake for 15-20 minutes, or until the chicken is cooked through.
5. In the same skillet, add the mushrooms and cook until they are tender. Pour in the Marsala wine and chicken broth, and bring to a simmer.
6. Add the heavy cream and parsley, and continue to simmer until the sauce has thickened.
7. Serve the chicken with the creamy Marsala sauce on top. Enjoy!