Cake Dough Trade Detail tab: Trade your excess Candles for Cake Dough. The exchange rate is pretty bad, but it might be more convenient than trading with your neighbours. Effect Use on Mayor’s House to get 5 Cake Dough collectibles. Cost: x 10 Production Time: 2 m 30 s Instant Upgrade: 1 Objective: Home Island: Buildings Delete Item: Yes Trade: No Type: Instant Upgrade