Four-layered Frosting is a blocker in Candy Crush Saga that is first seen in level 171. It can spawn from magic mixers from level 4287 onwards. This blocker requires four hits to destroy, making it a difficult and annoying blocker in some levels.
Four-layered frosting looks like three coloured icings stacked on top of another, packed in a silvery plastic sachet.
For the list of levels with this blocker, see here.
Four-layered frostings are stationary blockers that take up a tile, and needs four hits. These can be destroyed by making four adjacent matches, special candy effects, or cake bomb explosions. These blockers have three degrades before entirely disappearing. These blockers can hide jelly underneath them.