There are sometimes cupcakes in the pastry case at the Cove Cafe. They're free, but I'm not sure if they're the same recipe as "Disney cupcakes". The pastry chefs on board don't necessarily use the same recipes as the parks.
I found this photo of Orange Chocolate cupcakes in the upper right:
The only DCL cupcakes that ressemble what is offered in the parks are sold on Dream/Fantasy in the sweets shop. Nothing close to them are available on Wonder.
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