I still buy wok-ready udon, which can’t be beaten for convenience and are perfectly decent in an everyday stir-fry, but I use frozen udon when I’m cooking something a bit more special. They remind me of fresh udon that I’ve eaten in restaurants and are incredibly easy to cook: place a frozen block into a bowl, pour over freshly boiled water, gently separate the noodles then drain after one minute and they’re ready to be stir-fried or added to soup.
The only supermarket I’ve found that sells Yutaka frozen udon is Ocado but some specialist online retailers stock them too. One pack costs £2.89 (update in 2023: £5.80) and contains three servings so they’re more expensive than the non-frozen versions but I think they’re worth it.
If I had unlimited space I would fill my freezer with these noodles and I suppose that’s the only (tiny) downside - freezer space can be harder to come by than cupboard space. I can’t be without these irresistible udon, though, so I’m more than happy to give them a dedicated corner in my freezer.