-
1
Julienne the daikon and carrot to 1–2 mm wide and 6–8 cm long. Uniformity is not ornamental: pieces of uneven thickness marinate at different rates and will produce inconsistent texture throughout the dish. The cut is done when every strip falls within that narrow dimensional range.
-
2
Combine the julienned daikon and carrot in a bowl. Scatter over 1–2 teaspoons of fine salt per 300 g of combined vegetables and toss well. Leave undisturbed for 15 minutes. The vegetables are ready when they have visibly softened and pooled liquid at the base of the bowl.
-
3
Take the salted vegetables in both hands and squeeze firmly and thoroughly. Residual water left in the vegetables will dilute the marinade and produce a bland, watery result — this is the step where the dish lives or dies. Squeeze until no further liquid runs freely, then ease off: the daikon must retain some residual moisture or it will turn tough on marination. Discard all expressed liquid.
-
4
Prepare the amazu: stir together the rice vinegar, sugar, and a pinch of salt until the sugar fully dissolves. The dressing should read slightly sweeter than seems correct at this stage; the vegetables' residual salt and mild bitterness will moderate it during marination. Taste to confirm sweetness is forward and the acid is bright but not sharp.
-
5
Combine the squeezed vegetables with the amazu. If using, add the kombu slivers and yuzu peel now. Turn everything together so the dressing coats evenly. Transfer to a sealed container and refrigerate for a minimum of 2 hours; overnight produces a more fully integrated flavour. The namasu is ready when the raw vegetable character has softened and the sweet-sour dressing has penetrated each strip uniformly — taste a piece of daikon and a piece of carrot; both should carry the same seasoning throughout.
-
6
Before serving, lift the namasu from any pooled dressing and arrange in a small mound. The finished dish should present two clearly distinct colours: white daikon dominant, orange-red carrot as the counterpoint, in an approximate 2:1 visual ratio. The strips should hold their shape and offer a clean, crisp resistance — not limp, not hard.