A relative is staying at the Sheraton, and I can't think of any place nearby apart from the Starbucks, Second Cup and Lettieri on Queen W. I realize there are some bakeries like Clafouti, Dufflet and Vienna Home bakery further west on Queen. Are any of them open at night?
I will be meeting her after her dinner at King's Garden on King W, so the other option is to meet for dessert somewhere on King- again, apart from the Second Cup nearby, I can't think of any spots on King W serving coffee and dessert. I usually avoid eating in the Ent District, so I'm not familiar with the dessert menus at the restaurants between Roy Thomson Hall and Spadina. Any suggestions?