Sally, I steamed them in a siatnless steel steamer on the stove. Cat, I bought the bowls near the Brisbane airport. You might be able to find similar ones in Seoul.Marian, I used a siatnless steel steamer to steam. I don't think any seaweed will be suitable for kombu. You can probably get some at a Korean grocery or Japanese grocery store. Anh, That's good to hear. If you make another one, post the picture on your blog. I would like to see yours.