When I first heard that Shake Shack had a Golden Sponge Cake custard on the menu, I wasn't exactly sure what it was. Maybe a classic yellow cake, a butter cake, or some kind of British sponge cake custard?
Based on the picture that was on the calendar, it's based on a Twinkie - haha! Which makes sense when you see the cup of custard - it's that classic bright yellow hue of a package of the snack cakes. The custard was really delicious, like a very rich version of vanilla and cake. It perfectly complimented my burger, and I would definitely get it again!