A sinseollo (aka sinsollo) is both a Korean cooking pot, and the hotpot dish made with it.
As a cooking pot, it is a large brass bowl, with a tube in the middle. White charcoal, which gives a smokeless fire, is put in the tube to provide cooking heat.
As a dish, it is sort of a self-cook “smorgasbord.” Food items are provided to you individually in small bowls at a restaurant such as strips of meat (beef, sheep’s intestine, beef tripe), eggs, shrimps, parsley, shiitake mushrooms, carrots, cucumbers, gingko nuts, jujubes, pine nuts, radishes, green onions, and garlic.
Many of the ingredients are precooked, and the vegetables are cut into fancy shapes.
You pick want you want and put it in a broth in the pot to cook.
Sometimes referred to as a hotpot or firepot. The word “sinseollo” in Korean means “immortal.”