I used domestic Japanese beef and a Sunshine Tomato from Iwaki in Fukushima prefecture. Cut the tomato into bite-sized pieces.
Cut up the leek into 2 to 3 cm long pieces.
Stir fry the leek in a non-stick frying pan without adding any oil over high heat.
When the leek is browned, add the beef and continue stir frying over high heat.
Add the sake, and stir fry to evaporate the alcohol - still using high heat.
Make a space in the middle of the frying pan, add the sugar and ponzu sauce, and mix it all together while stir frying - still over high heat.
Add the cut up tomatoes, stir fry quickly (high heat!) and it's done.
The acidity of the tomato and ponzu sauce are very refreshing.
The beef is filled with umami.
It's also delicious if you add a beaten egg and stir fry it quickly.
This is the version with soft-cooked egg. It's delicious poured over a bowl of freshly cooked rice.
Story Behind this Recipe
I wanted to make a recipe using domestic beef and a Sunshine Tomato from Iwaki in Fukushima prefecture to match with Japanese rice that we can be proud of. Something that was quick to cook and easy to eat and went well with rice, and so this recipe was born. The tender beef, the sweetness of the Japanese leek and the acidity of the tomatoes go well together, and really whets your appetite.
It's beef so you just have to cook it briefly. The key to this dish is to use high heat throughout to stir fry everything. The tomato just has to be quickly stir-fried too. If you cook the leek for some time, it will become sweeter and more tasty.