There are several late-night dessert cafes in Boston where you can satisfy your sweet tooth. Here are a few options:

1. Mike's Pastry

Located in the historic North End neighborhood, Mike's Pastry is a popular spot for delicious desserts. They are open until midnight on weekdays and until 1 am on weekends, making it a great choice for late-night cravings. Their cannoli and lobster tail pastries are highly recommended.

2. Toscanini's

Toscanini's, situated in Cambridge, is a renowned ice cream parlor that stays open until 11 pm during the week and until midnight on weekends. They offer a variety of unique flavors, such as Burnt Caramel and Ginger Snap, which are sure to delight your taste buds.

3. Flour Bakery + Cafe

Flour Bakery + Cafe has multiple locations in Boston, including one in the South End that is open until 10 pm every day. They are known for their delectable pastries, including their famous sticky buns and homemade pop-tarts.

These are just a few examples of late-night dessert cafes in Boston. For more options, you can also check out local review websites like Yelp or TripAdvisor.

Enjoy exploring these sweet spots in Boston!