
Chef Jeong-sun
Aehobak-bokkeum (Korean Stir-Fried Zucchini)
Tender Korean zucchini half-moons cooked quickly over real heat, seasoned with salted shrimp so the squash tastes deeper than oil and still clean enough for a weeknight table.
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Golden Korean sweet potatoes braised until tender in soy, rice syrup, and sesame, sweet enough for children but seasoned carefully enough to sit properly beside rice.
Autumn is when goguma (Korean sweet potatoes) begin to crowd the market baskets, still dusty, with skins the color of old red clay. Buy the small heavy ones if you can. They cook evenly, and their flesh stays sweet and dense instead of watery. Cook the month you're standing in: this banchan belongs naturally to late autumn and winter, when a plain table needs something sweet beside the salty and fermented dishes.
Goguma-jorim lives or dies by the cut and the reduction. Cut the pieces the same size, soak off the surface starch, and simmer them gently before you ask the glaze to cling. People rush and boil hard, then wonder why the pot turns to mashed sweet potato. Sweet potato is not potato. It forgives less.
This is the side dish children reach for past the kimchi, but don't turn it into candy. That is mat-tang's work, the fried glazed sweet potato snack. Here the soy sauce gives a quiet salt edge, the rice syrup gives gloss, and sesame oil finishes it after the heat. Let the goguma taste like itself. Write down the timing for the variety you buy, because one market's sweet potato softens in 12 minutes and another's needs 18. Memory is a borrowed bowl.
Sweet potatoes entered late Joseon Korea in 1763, when the envoy Jo Eom brought them from Tsushima after seeing their value as a hardy crop. They spread first through southern coastal regions such as Busan and Tongnae, valued because they grew in poor soil and helped households through lean seasons. Goguma-jorim is an everyday home banchan, not a court dish, built from the Korean jorim method of simmering an ingredient in soy-seasoned liquid until the seasoning reduces and clings.
Quantity
600g
scrubbed, cut into 1 1/4-inch chunks
Quantity
3 cups
for soaking
Quantity
1 tablespoon
Quantity
3/4 cup
Quantity
2 tablespoons
Quantity
1 tablespoon, plus 1 teaspoon if needed
Quantity
1 tablespoon
Quantity
1 tablespoon
Quantity
2 cloves
thinly sliced
Quantity
1 teaspoon
Quantity
1 teaspoon
Quantity
1 tablespoon
| Ingredient | Quantity |
|---|---|
| Korean sweet potatoes (goguma)scrubbed, cut into 1 1/4-inch chunks | 600g |
| cold waterfor soaking | 3 cups |
| neutral oil | 1 tablespoon |
| water | 3/4 cup |
| soy sauce (ganjang) | 2 tablespoons |
| rice syrup (jocheong) or corn syrup | 1 tablespoon, plus 1 teaspoon if needed |
| brown sugar | 1 tablespoon |
| mirin or rice wine | 1 tablespoon |
| garlicthinly sliced | 2 cloves |
| toasted sesame oil | 1 teaspoon |
| toasted sesame seeds | 1 teaspoon |
| chopped walnuts or roasted peanuts (optional) | 1 tablespoon |
Scrub the sweet potatoes well and cut them into 1 1/4-inch chunks, leaving the skin on if it is clean and thin. Soak the pieces in cold water for 10 minutes, then drain and pat dry. The soak pulls off loose starch so the glaze stays clear and glossy instead of cloudy.
Heat the neutral oil in a wide skillet or shallow pot over medium heat. Add the drained sweet potatoes and turn them for 2 minutes, just until the surfaces look lightly coated and a little deeper in color. This small oil step helps the edges hold their shape during the braise.
Add 3/4 cup water, soy sauce, rice syrup, brown sugar, mirin, and sliced garlic. Stir once, gently, so every piece meets the seasoning. The liquid should come about one-third of the way up the sweet potatoes, not cover them. Too much liquid makes them waterlogged before it ever reduces.
Cover the pan and simmer over medium-low heat for 10 to 14 minutes, turning the pieces once halfway through. A skewer should enter the thickest piece with slight resistance. Do not boil hard. Sweet potato breaks when it is bullied.
Uncover the pan and raise the heat to medium. Simmer 5 to 8 minutes, spooning the sauce over the pieces and shaking the pan instead of stirring hard. Stop when the liquid has reduced to a shiny glaze that coats the bottom of the pan in a thin layer. If the pan dries before the sweet potatoes are tender, add 2 tablespoons water and continue gently.
Turn off the heat. Add the sesame oil and sesame seeds, and the nuts if using. Toss by lifting and turning with a spoon, not mashing. Taste one piece. It should be sweet first because goguma is sweet, but the soy should keep it from tasting like dessert.
Let the goguma-jorim cool for at least 10 minutes before serving. The glaze tightens as it cools and clings better to the corners. Serve warm, at room temperature, or chilled as banchan with rice, kimchi, and something sharper beside it.
1 serving (about 170g)
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