Since Indessert opened in March, providing Chinatown with a much needed late-night dessert spot, I've eaten there eight times. It's hard not to when it's a mere 10-minute walk from Serious Eats HQ, but even if it were farther, I think I'd still end up there too often for tong sui, shaved ice, waffles, and customizable dessert soups.
Out of the ten items I've tried so far, my favorite is their Mango Pomelo Sago Soup ($5.50). This cold dessert soup starts with a base of freshly made mango purée mixed with heavy cream and sweetened with rock sugar, topped with tiny, chewy sago pearls, plump pomelo segments (or, in the current off-season, grapefruit segments), and chunks of ripe, juicy mango. It's not heavy, but with all the mix-ins and the heavy cream-fortified mango purée, it feels more substantial than you might expect. Sweet, fruity, and creamy, it's a great dessert for a hot summer day (or, if you're me, any day).
Just don't go to Indessert for breakfast, as tempting as that may be; it doesn't open until noon. But it does stay open until 11 p.m. Sundays through Thursdays, and until midnight on Fridays and Saturdays.