For the list of levels with this blocker, see here.
Properties[]
Two-layered Dark Chocolates are immovable blockers that occupies only one space. These blockers can be destroyed by an adjacent match or special candies' effects that touch it. Jelly can hide under the Two-layered Dark Chocolate. These blockers need one hit to destroy. It can swallow up a candy within its vicinity.
Here is the difficulty of destroying a Two-layered Dark Chocolate:
This is one of the few blockers that do not appear in the Flash version because it ended at level 2825. Also, this blocker was never unofficially introduced in said version due to a redesign.
This is chronologically the last type of dark chocolate that can be spawned from regular magic mixers (in level 4211, with one-layered dark chocolate and three-layered dark chocolate being able to be spawned from regular magic mixers before level 4000).
Two-layered dark chocolate has the tilemap code 095.