Knowing how to make dessert pizza in Hello Kitty Island Adventure is essential for befriending Bad Badtz Maru or completing quests.To make dessert pizza, you'll need the following ingredients: dough, candy clouds, swampmallows, and sugar kelp.Characters like My Melody, Hello Kitty, and Bad Badtz Maru love dessert pizza in the game.Dough can be obtained as a reward for gifting items to Retsuko, while candy clouds and swampmallows can be obtained through gifting and exploring.