Ingredients 1 pound spaghetti 1 pound boneless, skinless chicken breasts, cut crosswise in half Kosher salt and freshly ground black pepper, to taste 1/2 cup all-purpose flour 4 tablespoons unsalted butter, divided 2 cloves garlic, minced 1/4 cup diced shallots 3/4 cup chicken broth 1/4 cup dry white wine* Juice of 1 lemon 1/2 cup…