Takana (Bongo) onigiri
A home version inspired by the shop filling named above. The shops do not publish their recipes; these quantities are this site's own. This page makes one filling, then shapes and serves it. Start with plain cooked Japanese short-grain rice: rice cooking, hand shaping and all shop fillings →. The filling preparation time below excludes cooking the rice.

Step by step
Filling
1Takana
medium-high~4 minFor this step
- Pickled takana (mustard greens)100 g
- Sesame oil (takana)1 tsp
- Dried chilli, sliced½
- Soy sauce (takana)1 tsp
- Sesame seeds1 tsp
- Chop the takana finely and squeeze out as much liquid as you can.
- Fry it in the sesame oil with the chilli over medium-high heat for 2–3 minutes, add the soy and cook until dry. Stir in the sesame seeds.
Shape by hand
2Shape them shop style
~2 min eachFor this step
- Cooked rice, from the onigiri page480–720 g (120 g each)
- Kosher salt (for your hands)a little for each onigiri
- Have the cooked rice ready, covered, and cool it only until comfortable to hold. Wet your hands and rub a little salt over both palms.
- For each onigiri, put about 60 g rice in your palm, make a well and add a heaped tablespoon of filling. Cover with another 60 g rice and gently close the rice around it. Save any extra filling separately.
- Cup the rice from below with one hand. Bend the other hand into a roof, press gently to make a corner, turn a third of a turn and repeat. Keep it loose: press only enough to hold together.
Finish

3Wrap and serve
For this step
- Nori strips4–6
- For the shop-style finish, set a little of the same filling on top so you can see what is inside. Leave the top uncovered by nori.
- Wrap one strip of nori around the base and up the sides just before serving. Eat within the hour while the nori is crisp. The sliced example shows the inside; cutting yours open is optional.
Based on: Hidden Japan Gems — Onigiri Bongo menu · MICHELIN Guide — Onigiri Asakusa Yadoroku · Asakusa Yadoroku (official) · Nigihaya, Kyoto (official, Japanese) · Togoshi-ya (official, Japanese)