Toasted sesame oil (goma abura) is used in many Japanese recipes that have been adopted from the Chinese kitchen. It is primarily a seasoning oil, rather than a cooking oil. Rancidity can be a problem, so check the bottle for a sell-by date (not all bottles have them), and buy from markets with a high turnover. Once opened, store sesame oil in a cool, dark, dry place. Look for one hundred percent pure sesame oil. I use either Kadoya or Maruhon (Japanese brands).