Granowska's is a longstanding, family-run bakery, which specializes in cakes and pastries. They make quite a good Napoleon (Napoleonka). They even baked for the last Pope (Polish-born John-Paul II, whose statue is across the street) on his visits to Canada.
But what's really interesting is that, in the same building that sells the sweets, a Granowska sister also has a dental office. I don't know if the bakery does referrals or not, but the irony here is pretty blatant, it'd be interesting to see what dessert is like at some family gatherings.