Wash the mustard greens thoroughly and cut them into bite-sized pieces. Sprinkle with coarse sea salt and let them sit for 1-2 hours to release water.
Make sure the greens are evenly salted to avoid uneven fermentation.
Rinse the mustard greens under cold water to remove excess salt and drain well.
Ensure that the greens are well drained to prevent the kimchi from becoming too salty.
Grate the garlic and ginger, and mix them with Korean red pepper flakes (gochugaru), fish sauce, and sugar to form a thick paste.
Adjust the amount of gochugaru based on your preferred spice level.
Chop the spring onions into small pieces and add them to the garlic-ginger paste.
Chop the spring onions finely to distribute evenly in the kimchi.
Mix the mustard greens with the garlic-ginger paste and spring onions. Massage the paste into the greens to ensure even coating.
Wear gloves to avoid staining your hands with the red pepper paste.
Pack the mixture tightly into a clean jar, pressing it down to remove air bubbles.
Leave some space at the top of the jar to allow for expansion during fermentation.
Cover the jar loosely and let the kimchi ferment at room temperature for 2-3 days.
The kimchi will continue to ferment slowly in the fridge, but at a slower pace.
Once fermented, store the gat kimchi in the refrigerator to slow down the fermentation process.
Gat kimchi is best enjoyed chilled and can be served with a variety of Korean dishes.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.