Mini BigMouths from Xan Confections -  "organic crisp brown rice and marshmallow base with a layer of signature caramel and natural peanut butter covered in milk chocolate."

The box actually contained two pieces covered in milk chocolate and two pieces covered in dark chocolate.

Really good.  They did leave me wondering if there is actually a full-sized BigMouth instead of a Mini because I just don't know how you can eat more than this.