01 -
Mix flour, ¾ teaspoon salt, and ¼ teaspoon pepper in ziplock bag. Add chicken and shake to coat evenly.
02 -
Heat oil and 2 tablespoons butter in large skillet over medium-high heat. Cook chicken until golden, about 5-6 minutes total. Remove to plate.
03 -
Melt remaining butter in pan. Cook mushrooms until browned, 3-4 minutes. Add shallots, garlic, and salt; cook 1-2 minutes more.
04 -
Add broth, Marsala, cream, thyme, and seasonings. Boil, then reduce heat and simmer until sauce reduces by half, 10-15 minutes.
05 -
Return chicken to pan with accumulated juices. Simmer until warmed through and sauce thickens, 2-3 minutes. Garnish with parsley if desired.