Rinse radish if they are dirty.
3 lb Ponytail Radish
Cut off the root.
Remove dirt from the area where the stems connect to the radish by using a knife.
Scrape the surface of radish with the edge of a knife (or rough scrub) to remove dirt. Cut off yellow leaves and the outer stems that look tough. Cut long stems in half.
Cut the large radishes in half length-wise but no need to separate the stems.
Place the ponytail radishes in a large bowl. (If they are dry, sprinkle some water so surface is wet.) Sprinkle salt. Mix everything well by hand. (If large amount, you can sprinkle in layers. More salt as you move to the top layers.) Wear rubber gloves so your hands don’t sting.
Let it sit for 30 minutes. After 30 minutes, turn over the ponytail radishes and leave them for another 30 minutes. (Total brining time is 60 minutes.) This helps the ponytail radishes to be evenly salted. Depending on the quality of the ingredients and the weather, brining time may vary. When the radishes are properly brined, they should bend without any resistance. (The colder the temperature, the longer the brining time.)
4 tbs Coarse Sea Salt
Wash each radish thoroughly 2-3 times each time with fresh water. Wash the stems more throughly because they absorb much more salt than the root part. Leave them in a strainer for at least 1 to 2 hours to drain water out completely.At this point, if you taste after washing, should be a tiny bit saltier than you like. The saltiness will decrease as they get fermented later. If it’s extremely salty, you can soak in water for a while until desired to saltiness. Mix sweet rice flour (or regular flour) with COLD water. Stir until there are no lumps. (If you are making a large amount, use some water to mix with flour and boil the rest of the water. Then, add the mixture to the boiling water. This way you don't have to stir for a long time.) Cook on medium heat while stirring until it reaches “cream soup like” consistency. Take it off the heat and let it cool COMPLETELY.
1½ tsp Sweet Rice Flour, ½ cup Water
Add gochugaru (hot pepper flakes) into the completely cooled flour soup. (If you can’t take very spicy food, reduce the amount of gochugau. Mix well. Leave it for about 20 min to get more vibrant color (optional). If you leave this gochugaru and flour soup mixture in the fridge overnight, it can improve color and taste but not required. ⅓ cup Gochugaru
In a medium bowl, mix all remaining ingredients (salted shrimp, green onions, minced garlic, minced ginger and sugar) into the gochugaru paste. Taste and add some salt as needed ONLY IF your seasoning is not salty enough you can add some salt (because salted shrimp saltiness may vary depending on the brand OR if your brined radish is not salty enough)
2 tbs Salted Shrimp (Sae Woo Jeot), 3 Green Onion, 1 tbs Sugar, 4 tsp Garlic, ½ tsp Ginger, 1/4 tsp Coarse Sea Salt (OPTIONAL)
In a large bowl, throughly mix the radishes with the seasoning. Don’t pour all the seasoning at once in case there is too much seasoning for the amount of radish.
Place them in a container with a good seal. Fill only 85% of the container and place a tray below the container. It can overflow as it produces liquid while fermenting. Once the container is filled, use your hand to pat down on kimchi so that it is tightly packed in the container. Cover the top with a plastic sheet (cling wrap). Close the lid. If you are making a small amount and will be eating it in a week or two, you don’t have to cover with a plastic sheet. The plastic sheet keeps the air out so it reduces a chance of getting molds. Alternatively, you can use a specialized kimchi container or fermenter with a vacuum seal. Leave it out in room temperature for a day or two for proper fermentation then into the fridge. If you want to eat it soon you can leave it at room temperature until it has a sour taste you like. We left out in room temperature for 4 days and 2 days in the fridge before eating it. After they are fermented, keep them in the fridge.
Serve COLD as a side dish (usually 2-3 pieces per person).