The buzzer went off as soon as I hit publish post.
I burnt it. It was in there for the lower amount of time, and it doesn't smell so great now that I've opened the oven.
I looked at the temperature, which was supposed to be at 350 degrees, and it was a lot closer to 400.
40 minutes in an oven 50 degrees too hot... I'm not surprised its burnt.

The edges look kind of glassy. I think the cinnamon crumb part's sugar melted and now I have a caramelized sugar coat too. It's still too hot to assess the damage, but its probably not so appetizing.
- salam az Mar @ 6:39 PM