I don't think I've ever gone to Kensington Market and not stopped by Bunner's. I always find the people behind the cash super friendly and attentive despite some bad reviews on here. I got my husband a birthday cake (chocolate raspberry) from here last year and it was incredible. The smallest cake could honestly feed 10 people so its totally worth the money. I've also taken a baking class here and it was so much fun and super informative. Even though I'm not gluten free (just vegan), I definitely levelled up as a baker after :P
Their cupcakes are life changing and I have recently discovered the yogurt parfaits. Mmm.