which recently faced "skimpflation", and Trader Joe's mini sheet cakes. But, if there is one cake that rules them all, it just might be Costco's white cake with vanilla cheesecake mousse filling.

Honestly, it's hard to go wrong. In the U.S., Costco cakes can be chocolate or vanilla. The chocolate sheet cake includes chocolate mousse filling and chocolate buttercream icing. The vanilla is ...