Pan Seared Chicken in Tarragon Cream Sauce

Thin cut chicken breasts (I was making 8)

kosher salt and black pepper

extra virgin olive oil

shallots

heavy cream

fresh tarragon, finely chopped 

Juice of half a large lemon

crimini mushrooms

cleaned with stems removed, sliced

large garlic cloves

just cut in half

dry white wine

 I used Sauvignon blanc

butter