Sardines and Cake is a food fusion served at Fuse This that was mentioned in the song 1 + 1 in the episode Kon-Fusion. Sardines and Cake is some cake stuffed with sardines.
Sardines and Cake is a two layer chocolate birthday cake with pink icing on both layers. It is stuffed with a bunch of blueish grayish sardines with yellow eyes. It has four candles on it. These candles are white and they have been lit.