stir-fried udon, buttered and lacquered in soy
Ingredients · tap to check
- 2 packs (400 g / 14 oz) fresh thick udon noodles, the vacuum-sealed kind
- 1/4 head green cabbage (about 200 g), ribboned into wide ribbons
- 2 scallions, cut on a sharp angle into short lengths
- 2 Tbsp unsalted butter
- 3 Tbsp soy sauce
- 1 Tbsp mirin
- 1 tsp sugar
- 1 egg
- 1 tsp neutral oil, for the egg
- a generous handful of katsuobushi, bonito flakes, to finish
- for the cucumber side: 1 Korean or Persian cucumber
- 1 Tbsp rice vinegar
- 1/2 tsp sugar
- a pinch of salt
The Way
- Slide the udon out of the pack into a bowl of warm water and leave it 2 minutes, just until the block gives and the strands loosen apart on their own. Lift them out and drain. Do not boil them here, they finish cooking in the wok, and boiling is what turns thick udon soft and breakable.
- Ribbon the cabbage into wide strips, wider than you think, and cut the scallion on a sharp angle. Cabbage cut thin disappears into the sauce, cut wide it stays sweet and keeps a bite.
- Make the cucumber side first so it has time to sit. Lay the cucumber on the board and crack it open with the heel of your palm, one blunt press down the length until it splits into rough pieces. Toss those with the rice vinegar, sugar and salt and leave it in the fridge. Cracked beats sliced here, the torn faces hold far more dressing than a clean cut does.
- Stir the soy sauce, mirin and sugar together in a small cup and keep it beside the stove. You will not pour it onto the noodles.
- Get a wok or a wide heavy pan properly hot, then drop the butter in. It will foam gold fast, and that foaming stage is the window. Tip the cabbage in and tumble it 1 minute, until the edges just start to catch colour but the middles are still pale.
- Add the drained udon and toss it through the butter for 1 minute, until every strand is coated and glossy and the noodles are hot all the way through.
- Now the one move that makes this dish. Push the noodles to one side and pour the soy mixture down the bare hot wall of the wok, in a slow line, so it hisses and darkens before it ever touches the noodles. Let it bubble and reduce there for a few seconds, then toss everything through it. The sauce comes off the wall already caramelized, deep mahogany and slightly sweet, instead of just salty and wet.
- Scatter the scallion in, toss twice more so the noodles arc and the lacquer clings, then tip it onto a plate in one mound.
- Wipe the pan, add the neutral oil and fry the egg sunny side up over medium heat until the white is set and lacy at the edge but the yolk is still soft and domed. Slide it onto the noodles whole.
- Shower the bonito flakes over the top while the plate is still steaming, a thick handful. Watch them for a second, the rising heat catches the paper-thin flakes and they curl and wave on their own. Serve with the cold cracked cucumber alongside.
midnight tip. two things separate this from a pale, wet noodle stir-fry. first, the soy goes down the hot wall of the wok, never straight onto the noodles. poured on the metal it reduces and caramelizes in seconds, so what reaches the udon is already lacquer, and every strand comes out mahogany and glossy instead of grey and soggy. second, warm water only for the noodles. fresh udon is already cooked, so it needs loosening, not boiling, and any minute it spends in a rolling pot is a minute of chew you do not get back. the bonito on top is not just garnish either, the flakes only dance if the plate is genuinely hot, so finish and serve it in the same breath.
Questions
can I use dried or frozen udon instead of fresh?
frozen udon is the best of the three, better than the shelf-stable packs, and it goes straight from the freezer into hot water for a minute to loosen. dried udon needs a real boil, so cook it to just under the package time, rinse the surface starch off, drain it very well, then treat it like the fresh noodles from step five. wet noodles steam instead of searing, so shake the colander harder than feels necessary.
why pour the soy down the side of the wok instead of onto the noodles?
on the bare hot metal the soy and sugar reduce and caramelize almost instantly, which is where the mahogany colour and the toasted edge of the flavour come from. poured straight onto a pile of noodles it just soaks in cold, seasons them salty and leaves the pan swimming, so the udon steams in liquid rather than glazing. same ingredients, completely different dish.
my udon breaks apart or turns gluey. what went wrong?
almost always too much water time. fresh udon only needs a couple of minutes in warm water to separate, and if it sits in boiling water it goes fragile before it hits the pan. the other cause is tossing with a spoon or tongs, which shears the strands. use two hands or a wok spatula and lift from underneath rather than stirring in circles.
what else can go in, and does it keep?
this is a fridge-clearing dish by nature, so leftover roast chicken, thin pork belly, mushrooms, a handful of bean sprouts or any leftover banchan all belong in it. add raw proteins before the cabbage and cooked ones with the noodles. it does not keep, the noodles keep drinking sauce and go soft within the hour, so cook only what you are eating and make the cucumber side ahead instead, which is better cold and holds two days.
(this one was UDON) — it finds your DMs.
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