In a large saucepan, bring 2 cups water, the vinegar, and the sugar to a boil, stirring to disolve the sugar.
Add the jicama, cabbage, carrot, and onion. Cook, stirring, until the carrot and onion are just tender, 6-8 minutes. Drain the vegetables and spread them out on a large baking dish to cool to room temperature.
In a large bowl, toss the vegetables with the cilantro and the sesame oil. Season with salt and pepper to taste. Cover and refrigerate until ready to serve.
source: Top Chef the Cookbook, Lee Anne and Stephen