Tokyo Koji Daikon Pickles (べったら漬け, Bettarazuke)

Ingredients

Equipment Needed

• •Nonreactive pickling container, such as glass or enamel
• •Pickling weight, or a plate with a clean water-filled jar
• •Clean parchment or plastic wrap pressed to the surface

Instructions

1. 1

   Choose the daikon

   Choose a heavy, straight daikon with taut skin and no spongy patches. Late autumn to winter is its shun, when the flesh is sweet, juicy, and firm enough to pickle cleanly. If the daikon feels light for its size, save it for simmering instead; this pickle has nowhere to hide a tired root.

2. 2

   Salt the daikon

   Peel the daikon and cut it lengthwise into quarters, or into halves if your jar is wide. Rub the pieces evenly with the 30g salt, set them in a nonreactive container, and weight them lightly with a plate and a clean jar of water. Leave at cool room temperature for 12 to 24 hours, until a pool of liquid gathers and the daikon bends slightly without snapping.

   Salt is not only seasoning here. It pulls out excess water and firms the flesh, so the later kōji bed stays sweet and clinging instead of watery.
3. 3

   Prepare the kōji

   Break up the dried rice kōji with clean hands. Mix it with the warm cooked rice and the 60°C water, then cover and hold it in a warm place for 2 to 3 hours, stirring once or twice, until the grains soften and smell faintly sweet. Don't use boiling water, which dulls the enzymes that make kōji useful.

4. 4

   Make the pickle bed

   Stir the sugar, mirin, and 1 teaspoon salt into the softened kōji. It should look like a thick, pale porridge, sticky enough to cling to a spoon. Slip in the konbu and the chile if using. The konbu gives quiet depth, and the chile keeps the sweetness from feeling flat.

5. 5

   Rinse and dry

   Lift the daikon from its brine. Rinse it quickly under cold water, then pat it very dry with a clean towel. Do not soak it. A quick rinse removes harsh surface salt; soaking would put back the water you just worked to draw out.

6. 6

   Bury in kōji

   Spread a little kōji mixture in the bottom of a clean glass or enamel container. Lay in the daikon, packing kōji between and over every piece so no bare patches remain. Press plastic wrap or a piece of clean parchment directly onto the surface, then cover the container. The close contact keeps the daikon evenly seasoned and limits drying at the edges.

7. 7

   Pickle slowly

   Refrigerate for 3 to 5 days, turning the daikon once a day with clean hands or tongs. The pickle is ready when the flesh is pale ivory, lightly flexible, and sweet-salty through the center with a clean daikon bite still present. If the kōji smells sharply alcoholic or sour, you have let warmth do too much talking.

8. 8

   Slice and serve

   Wipe off most of the kōji paste, leaving only a thin sheen. Slice the daikon crosswise into pieces about 5mm thick and arrange three, five, or seven slices in a small dish. Serve cold or cool beside rice, grilled fish, or a celebration meal. It should be crisp under the teeth, sweet at first, then cleanly salty.

Chef Tips

• •Use fresh daikon at its prime, not the largest one in the shop by pride alone. The best piece feels heavy, has smooth skin, and shows a wet, clean face when cut.
• •Dried rice kōji is the sensible home-kitchen choice and still gives you honmono bettarazuke. Ready-made amazake can help in a pinch, but it makes a softer, looser bed and should not be called the same work.
• •Keep everything clean once the daikon leaves the salt. Kōji is friendly, but it is not magic. Clean tools and cold storage keep the flavor sweet and the pickle steady.
• •Do not slice the daikon before pickling unless you want a quick pickle with a different character. Larger pieces cure more slowly, which gives bettarazuke its pale interior and gentle sweetness.

Advance Preparation

• •Bettarazuke needs at least 4 days from salting to serving, and 5 to 6 days gives a fuller sweet-salty balance.
• •Once ready, keep the daikon in its kōji bed in the refrigerator for up to 1 week. Slice only what you plan to serve, since cut surfaces soften faster.
• •The kōji bed can be mixed one day ahead and refrigerated before the salted daikon goes in.

Frequently Asked Questions

Nutrition Information

1 serving (about 125g)