Sign up for the Red Robin Royalty rewards card before Nov. 25 and score a bonus item just for registering.
Get a coupon for a free shake, valid for use from Dec. 2 - Dec. 22, when you visit their site and create your Royalty account at https://royalty.redrobin.com/
In addition to the usual classic shake flavors, you can also try salted caramel, gingerbread, cookie magic or mint brownie.
With a Red Robin Royalty card, you will be treated to a free birthday burger, plus rewards based on frequency of purchases and other exclusive offers.
For a Red Robin near you, visit https://www.redrobin.com/locations/