Sungchae-mandu (숭채만두, Cabbage-Leaf Dumplings)

Ingredients

Equipment Needed

• •Wide pot for blanching cabbage leaves
• •28 cm steamer basket or wide pot with a rack and tight lid
• •Small paring knife for shaving cabbage ribs
• •Clean kitchen towel or cheesecloth for pressing tofu and squeezing sprouts
• •2-tablespoon scoop or kitchen scale
• •Instant-read thermometer

Instructions

1. 1

   Soak and press

   Cover the dried shiitakes with warm water and soak 20 minutes, until pliable. Wrap the tofu in a clean towel, set a plate on top, and press it for the same 20 minutes; it should give up at least 2 tablespoons of liquid. Blanch the mung bean sprouts in boiling water for 1 minute, cool them, squeeze them hard in your hands, and chop them into 1/4-inch pieces. These water weights matter because cabbage leaf cannot absorb moisture the way dough can.

   After soaking, squeeze the shiitakes dry before mincing. Mushroom water in soup is useful; mushroom water inside this dumpling makes the filling slide around.
2. 2

   Blanch the leaves

   Bring 10 cups water and 2 tablespoons salt to a boil in a wide pot. Working with 3 or 4 cabbage leaves at a time, hold the soft leafy end with tongs and lower the thick white ribs into the boiling water first for 60 seconds, then submerge the whole leaf for another 30 to 45 seconds. Move the leaves to cold water, drain, and pat them very dry. Lay each leaf veined side up and shave the thick rib with a paring knife until it bends like cloth, taking care not to cut through the leaf.

   The rib is the place this dish succeeds or fails. Leave it thick and the dumpling cracks. Shave it thin and the leaf wraps cleanly around the filling.
3. 3

   Mix the filling

   Put the beef, soy sauce, salt, pepper, and ginger in a bowl and stir firmly in one direction for 1 minute, until the meat looks sticky. That stickiness is the binder. Add the pressed tofu, chopped sprouts, minced shiitakes, scallions, garlic, beaten egg, sesame oil, and crushed sesame seeds. Mix until the vegetables are evenly held by the meat. If the filling slumps or looks wet, add 1 tablespoon potato starch.

4. 4

   Test the seasoning

   Cook 1 teaspoon of the filling in a small pan until fully cooked, then taste it. Do not taste raw meat. The filling should be a little more seasoned than you want by itself, because the cabbage leaf softens the salt once it wraps around it. If it tastes flat, add another 1/4 teaspoon salt or 1/2 teaspoon soy sauce, then cook and taste a second tiny patty. 손맛 is real; I measure it anyway, so you can make the same dumpling twice.

5. 5

   Wrap each dumpling

   Lay one cabbage leaf on the board, veined side up and stem end closest to you. Spoon about 2 tablespoons, or 30g, filling onto the lower third and shape it into a short log. Fold the stem end over the filling, fold in both sides, and roll snugly, but do not squeeze like a fist. Tie with a blanched minari stem or garlic chive if you want a neater parcel, or place the dumpling seam side down and let its own weight hold it. Use the two spare leaves to patch any tears.

6. 6

   Steam to set

   Line a steamer with cabbage trimmings or perforated parchment. Bring water in the steamer base to a steady boil, then arrange the dumplings seam side down with a little space between them. Cover and steam 10 to 12 minutes, until the cabbage is glossy and nearly translucent and the filling reaches 160 F (71 C) in the center. Let them rest 2 minutes before moving them, because the leaf firms slightly as it settles.

   If you are using two stacked steamer trays, rotate them once halfway through. Do not keep lifting the lid to admire your work; steady heat is what sets the filling.
7. 7

   Sauce and serve

   Stir together the soy sauce, rice vinegar, water, minced scallion, sesame seeds, and gochugaru if using. Arrange the dumplings on a warm platter, seams tucked underneath, and serve them with the dipping sauce, rice, and a clear soup or a few quiet banchan. This is not a fiery mandu. The point is the cabbage, the clean filling, and the care of the wrapping.

Chef Tips

• •Cook the month you're standing in. Sungchae-mandu is best from late autumn through winter, when baechu is heavy, sweet, and broad-leaved after kimjang season. In June or high summer, buy the firmest pale napa you can find and taste a raw rib first; if it is bitter and thin, save this dish for colder weather and cook hobak-jeon (zucchini pancakes) or oi-muchim (seasoned cucumber) tonight.
• •The safe corners to cut are the vessel and the meat. A metal steamer is fine, and good store-ground beef is fine. The corners you cannot cut are drying the filling, shaving the cabbage ribs, and cooking a test patty before wrapping.
• •Mince the filling small, about 3 to 4 mm pieces. A cabbage wrapper is thinner than flour and shows every careless lump. The finished dumpling should cut cleanly with chopsticks, not spill apart.
• •If you want a meatless version, use 250g pressed tofu, 6 soaked shiitakes, and 80g finely chopped blanched mung bean sprouts, then add 1 tablespoon potato starch to bind. It becomes a different, quieter dumpling, but it is still honest Korean food.
• •Serve these with cho-ganjang (soy-vinegar sauce), not a heavy red sauce. Gochujang would bury the cabbage. Let it taste like itself.

Advance Preparation

• •The shiitakes can be soaked, the tofu pressed, and the mung bean sprouts blanched and squeezed up to 1 day ahead. Keep each ingredient covered and refrigerated, then mince and mix the filling the day you wrap.
• •The cabbage leaves can be blanched and shaved up to 1 day ahead. Layer them between clean towels in a covered container so they stay pliable but not wet.
• •Wrapped dumplings can be held in the refrigerator up to 6 hours on a lined tray. Cover them lightly so the leaves do not dry out, and add 2 minutes to the steaming time if cooking straight from cold.
• •Cooked dumplings keep 2 days refrigerated. Reheat them covered in a steamer for 5 to 6 minutes. Freeze only after steaming if you must; the leaf softens after thawing, acceptable for a family lunch but not the dish at its best.

Frequently Asked Questions

Nutrition Information

1 serving (about 370g)