Tsukimi Udon (月見うどん)

The egg is the moon. That is the whole charm of tsukimi udon, and it is a good reminder that Japanese cooking often works by restraint, not by complication. You hollow the noodles slightly, crack in a very fresh egg, and pour hot broth around it so the white softens while the yolk stays round and bright.

The one detail that decides the bowl is the dashi. If the broth is thin, the dish becomes only noodles and an egg. Make a clear stock from konbu and katsuobushi, season it lightly with usukuchi shōyu and mirin, and the bowl has depth without heaviness. Don't boil the konbu. Don't squeeze the bonito flakes. These aren't little ceremonies, they're how we keep the broth clean.

Tsukimi means moon-viewing, and the dish belongs naturally to autumn, when the harvest moon makes even a weeknight supper look a little ceremonial. Still, nothing here is beyond the home kitchen. Use good frozen udon if fresh isn't available, choose an egg you'd trust, and serve it at once. Honmono is sometimes this simple: hot broth, honest noodles, one unbroken yolk, nothing hidden.