Mix flour, salt and pepper in shallow dish
Cut chicken lengthwise, set aside
Heat butter and olive oil to skillet over medium heat. Take care to mix oil and butter to prevent butter from overbrowning
Coat each chicken pieces with flour mixture
Gently put into heated skillet cooking 3 minutes on each side until lightly browned
Remove lightly browned chicken and set aside on a plate
Add sliced mushrooms and garlic to skillet and stir, cooking until browned
Add marsala wine (or substituted dry red) scraping bits from skillet, bring to a boil
Add chicken broth, throughly stir together with the wine, continue to boil for 2 -3 minutes
Reduce heat to LOW, return chicken to the skillet
Pour cream in gently stirring together. Cover and simmer for 10-15 mintues