I've had William Curley treats a few times - including a super fun experience at the dessert bar & a box of assorted chocolates. I was looking forward to trying this bar, as salted caramel is tops and I had no idea what 'mou' is...but I was interested. Why didn't I ever think to Google it?
Instead, I just bought one as soon as it was in front of me. Hey, like people in the olden days!
It's quite cool that it is split in two, that made sharing it with my husband very easy. I guess the implication is you shouldn't eat both of them at the same time. Pah!
It is a dark chocolate that it's covered in - I think it's the best partner to the filling as the caramel is sweet & salty, the little bit of bitterness makes the rest of the flavors really come out. It's a thin coating, so I can't really speak to the flavor of the chocolate too specifically except that it went very well with the caramel.
So, turns out mou seems to mean a caramel that is soft & chewy rather than runny or firm. Tough to call it 'chewy', though, as it does sort of melt in your mouth eventually - you wouldn't have to chew.
William Curley does another salted caramel bar, that isn't specified as being mou - so I think that one is runny. It's really a matter of preference, and I think I'd go with the runnier one next time. Not that the mou wasn't good - I just prefer very runny caramel. As far as chewier ones go though, the taste was lovely & the texture was better than usual since it was very soft and chewing wasn't a complete necessity.