Tetsuya Wakuda's restaurant, Tetsuya's, is a highly regarded restaurant in Sydney, Australia with a definite Japanese flair but making extensive use of Australia's ingredients in innovative ways (http://en.wikipedia.org/wiki/Tetsuya's). Tetsuya's is considered Australia's best restaurant and has routinely been ranked in the top 20 in the world (http://www.theworlds50best.com/module/acms_winners?group_id=1&item_id=55). Australia has an abundance of fresh fish and seafood, so a saltwater fish, prepared with a minimum of fuss, is a very traditional Australian preparation. Substitutions and variations: You can substitute marlin, tuna or bonito for the swordfish. You can substitute a relatively neutral oil with a high smoke point for the grapeseed oil -- I have used canola oil successfully. I use low sodium chicken stock. You can augment (or substitute for) the tomato with tomato paste. Wakame is available in dried form in most oriental grocery stores or via the Internet. To prepare dried wakame, wipe very lightly with a damp paper towel, then soak in room temperature water for no more than 60 seconds. "Rocket" is the UK (and Australian) term for arugula. This recipe is adapted from "Tetsuya" by Tesuya Wakuda. Uploaded for Zaar World Tour 5 (2009).