While Motorino holds the title of my favorite tiramisu in the city, we can add Keste to the list of reliable go-tos. It's $6 for a fair-sized round, layer upon layer of espresso-soaked ladyfingers, cocoa, and a velvety, barely-sweet yolk whipped mascarpone. In warm weather, I have this tiramisu to go, an impromptu sweet devoured at the nearby triangle park where Bleecker and Carmine intersect.
(Don't bother with tiramisu from recently opened Roma just a few shops down the block. It's a dollar less than Keste but the tiramisu is a mess, served in pre-packaged plastic cups filled 90% with plain cream and the other 10% with cocoa powder. They completely forgot the ladyfingers.)