Melt a knob of butter in a pan and sear the seasoned chicken until golden on both sides. Remove and set aside.
In the same pan, sauté the chopped onions.
Add the sliced mushrooms (brown & shiitake) and cook until they are tender and translucent.
Stir in the minced garlic and cornstarch, mixing well to coat the mushrooms.
Pour in the cream and add the parmesan. Stir until the sauce thickens and becomes glossy.
Place the chicken back into the sauce to finish cooking. Serve warm!
