Shake Shack said the Will & Grace Shake features cinnamon marshmallow frozen custard that's blended with fudge and topped with whipped cream and cinnamon sugar. The Jack & Karen Shake, however, is made with strawberry frozen custard that's blended with prosecco and topped with whipped cream, raspberry dust, and rainbow sprinkles. Yes, you read that right: prosecco. Blended right into the shake, as Karen Walker intended. You'll need to be at 21 and show ID to get one.
More specifically, you'll be able to get your hands on the shakes at two Shake Shack restaurants in NYC, the Herald Square location and the Upper West Side location, the latter of which is -- fun fact -- only a few blocks away from Will and Grace's apartment, according to a press release. As for LA, you'll find them at the chain's Hollywood and West Hollywood outposts.