It's a Wonderful Fruitcake

 is an episode of Pocket Dragon Adventures.

Synopsis
It's just before the winter holidays, and Scribbles' pen pal Princess Gwendolyn is sick. To cheer her up, the Pocket Dragons decide to bring her a present: a homemade fruit cake. Not content to bring any ordinary fruit cake, the Pocket Dragons bake up an enormous cake several times their own size. Now they just have to figure out how to get the cake to their friend and how to outsmart the Pie Rats, who've set up their own domain between the castle and Gwen's kingdom, and who won't let any "foreign" baked goods across their border!