khao Man is a more "high end" street vendor dish because it's more complicated to make, and requires a fairly sophisticated cart and tools. We fondly recall the Khao Man vendor at Sukhumvit Road 38, who drove a pickup truck every night to the street corner and spent a half-hour setting up his tables and pots. Be sure to use yellow bean sauce (do not substitute) and it's not authentic without some type of gourd (squash) as well as cucumber.