Beaver Tails. Quite the name, really. Don't you think.
Beaver Tails are one of my fave things about Ottawa. I first tried the location at the Byward Market about 10 years ago and have been back many times since. I've also had them in good old Niagara Falls ON and in Toronto. This particular location makes them perfectly well and deliciously, however their business hours are extremely limited, and they seem to be completely closed in winter, so for that reason they score 4 instead of the usual 5 I give to these amazing delights.
When you finally get to try one, have the regular (with lemon and sugar), they're freaking incredible. Make sure you eat it hot and fresh or it's not even worth it.