Chocolate Mousse Dollops are a topping available in Papa's Cakeria. The topping is unlocked from the start of the game.
Chocolate Mousse Dollops are a standard whipped cream dollop available in Papa's Waffle Mia!. The whipped cream dollop is unlocked on Rank 14 with Hop.
Chocolate Mousse Dollops is a standard topping available in Papa's Bakeria Deluxe. The topping is available from the start of the game.