A Winning Recipe

Martine helps her father, a baker, at their family's Paris pastry shop. He created a big and tall layer cake that needs decorating. The cake's destination is a party at the top of the Eiffel Tower. However, during the decorating process, both Martine and Jett had accidentally destroyed the cake. Where will they find a replacement one for the party? On top of that, how are they going to get it decorated and send it to the Eiffel Tower on time?