Pei Wei: Get a Voucher for Caramel Chicken on January 29th January 27, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. Visit any Pei Wei on January 29th and get a voucher good for one order of Caramel Chicken. Voucher is redeemable between Feburary 1st and Feburary 7th. Click here for more details. Thanks, SwagGrabber!