Chicken With Creamy Mushroom Sage Sauce

Name: Chicken With Creamy Mushroom Sage Sauce
Ingredients: 3 tablespoons butter; 1/2 cup chopped shallots; 8 to 10 ounces cremini or button mushrooms , thickly sliced; 2 shiitake mushrooms , thinly sliced; 1 teaspoon chopped fresh parsley; 1 cup dry vermouth or dry white wine (such as Sauvignon Blanc); 2/3 cup heavy whipping cream (light cream may curdle, so use heavy cream); 3 tablespoons chopped fresh sage; 1 tablespoon extra virgin olive oil; 1 1/4 to 1 1/2 pounds chicken breast cutlets or skinless, boneless chicken breasts pounded to an even 1/4 inch to 1/3 inch thickness; Salt and freshly ground black pepper