02Add the white wine or the vermouth to the pan, and with a wooden spoon, scrape up the browned bits that have collected on the pan. (This is called deglazing the pan.) Cook the wine until syrupy over high heat, about 3 minutes. Add the chicken broth, the sage, and reduce the sauce by 1/4 or until thickened. Off the heat, whisk in 1 to 3 tablespoons butter and the mustard, to enrich, flavor, and thicken the sauce. Season the sauce to taste with salt and pepper. Pour the sauce onto a serving platter or divide among 4 plates, put chicken on the sauce, and serve.03Copyright 2003 Television Food Network, G.P. All rights reserved04Cook's Note: For a cream sauce add 2 to 4 tablespoons cream to the sauce after the broth has reduced.