Serendipity 3 booze ice cream float in a glass with birthday cake ice cream
Enjoy A Nostalgic Ice Cream Treat With One Costco Food Court Hack
Though not offered on the menu, it’s possible to get a root beer float at the Costco food court. All you need to do is order a soda along with a cup of vanilla soft serve.
Simply fill your cup with root beer, stopping once it's about three-quarters full, and then carefully scoop the ice cream over the top and finish with a final splash of soda.
You can customize your float using any soda. You can go for Pepsi to replace root beer, orange soda for a creamsicle-esque treat, or even lemon-lime for a sherbet-like rendition.