Gyudon is a popular Japanese rice bowl dish topped with thinly sliced beef and onions simmered in a sweet and savory sauce. To make Gyudon, you will need the following ingredients: - 250g thinly sliced beef - 1 onion, thinly sliced - 3 tablespoons soy sauce - 2 tablespoons mirin - 2 tablespoons sake - 1 tablespoon sugar - 1 cup dashi stock - 2 cups cooked Japanese rice To prepare Gyudon, follow these steps: 1. In a large pan, combine soy sauce, mirin, sake, sugar, and dashi stock. Bring the mixture to a simmer over medium heat. 2. Add the thinly sliced beef and onion to the pan. Cook until the beef is cooked through and the onion is tender. 3. Serve the Gyudon over a bowl of cooked Japanese rice. Gyudon is a comforting and delicious rice bowl dish that is perfect for a quick and satisfying meal.