Chicken Breasts With Mushroom Sage Sauce

Name: Chicken Breasts With Mushroom Sage Sauce
Ingredients: 3 Tbsp butter; 1/2 cup chopped shallots; 8-10 ounces mushrooms, cremini or shitake, thickly 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 Tbsp chopped fresh sage; 1 Tbsp olive oil; 1 1/4 to 1 1/2 pounds skinless, boneless chicken breasts, pieces pounded to an even 1/4 inch to 1/3 inch thickness; Salt and freshly ground black pepper