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Sigeumchi-namul (Seasoned Spinach)

Name: Sigeumchi-namul (Seasoned Spinach)
Prep time: 5 min
Cook time: 5 min
Total time: 10 min
Yield: 2 servings
Cuisine: Korean
Ingredients: 1 bunch Spinach; 1 tsp Salt; 0.5 tsp Minced garlic; 1 tsp Soup soy sauce (or salt); 1 tbsp Sesame oil; 1 tsp Toasted sesame seeds; 1 Scallion

A classic Korean seasoned-vegetable side of lightly blanched spinach tossed with garlic, soy sauce, and sesame oil. A healthy 5-minute dish — great as a side or a bibimbap topping.

Ingredients

2servings

Steps

Trim the spinach roots, halve any large leaves, and wash well.
⏲ 3 min
Blanch the spinach in salted boiling water for just 30–40 seconds (bright green; don't overcook).
⏲ 40 sec
Rinse in cold water to stop the cooking, then squeeze out the water firmly (dry spinach takes the seasoning).
⏲ 2 min
Loosen the spinach in a bowl, then add the garlic, soy sauce, sesame oil, and sesame seeds.
⏲ 1 min
Gently massage to season evenly. Add scallion if you like.
⏲ 1 min
Plate and sprinkle with more sesame seeds — as a side or a bibimbap topping.
⏲ 30 sec

Variations

Doenjang style: A little soybean paste instead of soy sauce for a nutty depth.
Gochujang dressing: Add gochujang and vinegar for sweet-spicy-tangy.
Perilla oil: Swap sesame oil for perilla oil for a different aroma.
Other greens: Same method works for bean sprouts, chwinamul, or chard.

Tips

Blanch only 30–40 seconds so the spinach stays bright and not mushy.
Shock in cold water to stop the cooking, then squeeze dry.
Massage the seasoning in by hand for even flavor.
Soup soy sauce adds umami; finish with salt if needed.
Best eaten fresh — it weeps water if it sits too long.

More detail and the reasons why (6)

The cold water is not setting the colour; it is stopping the cooking. Drained greens keep cooking in their own residual heat, and an ice bath stops that instantly (blanching vegetables). Arresting overcooking is the main purpose and keeping the colour is a side effect. Get it the wrong way round and you end up putting already-soft spinach into cold water and waiting for the colour to come back.
Why 30 to 40 seconds. The green is chlorophyll, and chlorophyll is vulnerable to heat and acid. Heating releases organic acids from the cells, those acids strip the magnesium out of the chlorophyll, and the colour shifts to olive. Knowing that, the technique writes itself: cook briefly, dilute the acid, and give the acid a way out.
Blanch with the lid off. With the lid on, volatile organic acids condense and fall back into the water; lid off and they escape. Use at least five times the volume of water, too — the temperature drops less when the spinach goes in, and the acid is diluted.
Kongnamul muchim inverts the lid rule. Bean sprouts have no chlorophyll and so no colour to protect; what has to leave is the raw green smell of the bean. Lift the lid while that is volatilising and the steam cools and drops it straight back in — the same reason kongnamul-guk smells raw if the lid is lifted mid-cook. Lid off to let organic acids go; lid on to hold a raw note in while it cooks off.
Salt the water properly, roughly 10g per litre. It seasons, but it also narrows the osmotic gradient so less of the spinach's own substance leaches out. Skipping it is the most common reason this dish tastes flat. And do not leave it in the ice longer than about 30 seconds — past that the flavour starts leaching instead.
Why you squeeze it, and horta is the case that does not. That Greek dish is deliberately not wrung out, because hot leaves take up olive oil while cooled and squeezed ones only carry it on the surface. This dish has a few drops of sesame oil, so leftover water pushes the seasoning off instead. Same kind of leaf, different amount of fat, different handling.