How to Cook Japanese Long Onion - Cooking Times

Compare cooking times and preparation for Japanese Long Onion. Times vary with portion size, cut and heating conditions; check the tips for each method below.

Root Vegetables

Season: Winter

Cooking Times by Method

Raw

Used as a garnish. Finely shredded and soaked in water for a crisp topping

Boil

2-3 min

From boiling water

Cut into chunks. Also great in hot pot

Stir-fry

2-3 min

Diagonal cuts over high heat. Char marks make it sweet and delicious

Microwave

1.5-2 min

Chunks, 100g at 600W. Brings out sweetness

Steam

3-5 min

Becomes meltingly soft. Whole steaming also works

Common Mistakes

Storage & Use PlanTips & dates

Storage Time Guide

  • Freezer · Raw, cut white stalkAbout 1 month

    Separate white stalks from green tops. Cut white stalks and bag to freeze.

    Source (Japanese)

Estimates assume fresh produce stored as described. Freshness and temperature affect storage; these dates do not guarantee safety. Follow pack dates and instructions. Do not eat food showing spoilage, regardless of the date.

Plan When to Use It

Choose an earlier date if freshness has declined. One record per vegetable is saved on this browser.

Japanese Long Onion Cooking FAQs

How long to boil Japanese Long Onion?

Boil Japanese Long Onion for 2-3 min (From boiling water). Cut into chunks. Also great in hot pot

How long to microwave Japanese Long Onion?

Microwave Japanese Long Onion for 1.5-2 min. Chunks, 100g at 600W. Brings out sweetness

How long to stir-fry Japanese Long Onion?

Stir-fry Japanese Long Onion for 2-3 min. Diagonal cuts over high heat. Char marks make it sweet and delicious

How long to steam Japanese Long Onion?

Steam Japanese Long Onion for 3-5 min. Becomes meltingly soft. Whole steaming also works

Compare Related Cooking Times

Cooking times are estimates. Adjust for portion size, thickness and equipment, and check that the food is cooked through.