I've yet to find someone who doesn't like Thailand's ubiquitous dessert khao niew mamuang, deliciously ripe slices of mango and sticky rice smothered in a warm sweet and slightly salted coconut cream with toasted yellow mung beans.
While you'd be hard pushed to find a bad one, there are several stand out vendors in Bangkok, most notably Kor Panich which, for 80-plus years, has used the same recipe from the Royal Palace where the current owners parent's once worked. Mangos are seasonal and Kor Panich utilises different varieties across the year according to what's best at the time. Don't just take our word for it though, Michelin and Shell Shuan Shim (Thailand's food review equivalent) have slapped plenty of awards on Kor Panich over the years.
As shophouses go, it's a smart and historic little place with old wooden cabinets displaying antiques and decor that's little changed over the years. It's open-sided with just a handful of seating inside - most people order to takeaway.
Kor Panich is a little more expensive than your average khao niew mamuang. Prices start at 100 THB (US $3.20), but the quality is worth the extra spend. The mango is the star of the show (you can buy more whole mangoes from the vendors outside), but the slightly chewy sticky rice from Northern Thailand and creamy warm coconut that's spiked with palm sugar and just a hint of salt is about as good as it gets.
If you're staying in Khao San Road, you have no excuse - Kor Panich is only a 10-minute walk down Tanao Street.