Looking to sharpen your cooking skills now that the holiday season is approaching? Get in touch with your inner gourmet at Sharon's Coriander Bistro. On November 27th, master the art of comfort food at its "I Was a Teenage Gourmand" cooking class, which touches on the fancified mac 'n' cheese trend with a menu that includes a truffled version of the classic dish. Then on December 12th, learn some new tricks for party menus at its "Holiday Hors d’Oeuvres" session (7 PM; $60 per person, includes food, wine and service; payment by cash or check only; 781-784-5450; for more information, or to see the full schedule, go to www.corianderbistro.com).