Brown Swiss chocolate. The bar at the bottom is hazelnut chocolate, the bar in the middle contains pistachio nuts, the top bar is chocolate with a milk center.
<a href="//commons.wikimedia.org/wiki/User:LivingShadow" title="User:LivingShadow">Simon A. Youngster</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>