Thai Chicken and Rice (Khao Mun Gai)

Khao Mun is a more "high end" street vendor dish because it's more complicated to make, and requires a fairly sophisticated cart and tools. Khao = rice, Mun = fat. So this is "Fat Rice" or, in other words, rice cooked in chicken fat. 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. Always served with a bowl of chicken soup, fresh cucumbers and a side dish of a unique sauce as we prepare in this recipe. Be sure to use yellow bean sauce (do not substitute) as well as cucumber.