An annex to the popular pizzeria run by Brandon Pettit and Molly Wizenberg, this communal kitchen space holds classes almost daily. Learn to make the perfect layer cake in session, then head back for another focused on Asian dumplings. The only downside: New classes sell out quickly once they're posted on the website, so plan in advance. Click here to see the class schedule

When their underground food market had a run-in with the law, Joseph Shuldiner and his fellow food artisan pals created the IDT. A heaven for DIY enthusiasts, its classes focus on canning and preserving, bread baking and "milkcrafting," in which students learn to make ricotta, chèvre, crème fraîche and more from milk. Click to see the class schedule