It 's not such a tall order to plan your own culinary immersion , using Web sites such as www.eGullet.org , where , in a Vietnam forum , food fans lead each other to the country 's most authentic , nontouristy restaurants and dishes -LRB- such as bun cha , a grilled-pork soup seldom found in the United States but , by consensus of many on the site , '' one of Hanoi 's tastiest offerings '' -RRB- .