Inside is fine. Maybe slightly undercooked, because I panicked when I saw the top burning and took it out slightly early, but still absolutely edible and tasty!
I has a good chewiness to it, and I'm really happy with the flavour.
I'm disappointed about the outside being a bit burnt. It's not so burnt that it's not enjoyable. I know some people enjoy that level of toasted, it's just not what I was going for.