Korean Soy-Braised Potatoes

Quick answer

Total time: 37 min
Level: Easy
Servings: 2 servings
Ingredients: 7

About this dish

Gamja-jjim is a Korean braised potato banchan made by simmering potato pieces in a sauce of soy sauce, sugar, and minced garlic until the liquid reduces to a thick, glossy glaze.

As the sauce concentrates, it coats every cut surface of the potato with a lacquered sheen while the seasoning penetrates through to the center, so the flavor is consistent from the outside in. The sugar caramelizes slightly during the final minutes of reduction, adding a faint toffee-like sweetness to the soy's deeper, saltier notes. Minced garlic breaks down in the heat and melds into the sauce, providing an umami backbone that rounds out the simpler flavors. Finishing with sesame oil and a generous scatter of sliced chives introduces a toasted, nutty aroma and a fresh herbal brightness. The potato itself holds its shape but is cooked through to a fluffy, yielding interior beneath the sticky exterior. Simple to make and requiring few ingredients, it is the kind of side dish that disappears from the table without much fanfare, pairing effortlessly with a bowl of rice.

Ingredients

servings

IngredientAmountUnit

potatoes450 gg

soy sauce2 tbsptbsp

water220 mlml

sugar1 tbsptbsp

minced garlic½ tsptsp

sesame oil1 tsptsp

chives1 tbsptbsp

Shop All Ingredients

As an Amazon Associate, we may earn from qualifying purchases.

Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

6 steps

1

Season

Peel 450 g potatoes cleanly and cut them into even 3 to 4 cm cubes.

Keeping the pieces similar in size helps them cook at the same pace and absorb the soy seasoning evenly.
2

Control

Put the potatoes and 220 ml water in a pot and set it over medium heat.

Once it begins to boil, cook for about 8 minutes, until a chopstick enters roughly two thirds of a piece.
3

Control

Add 2 tbsp soy sauce, 1 tbsp sugar, and 0.5 tsp minced garlic, then gently shake the pot to spread the seasoning.

Cover and simmer over medium heat for 5 minutes so the sauce starts entering the potatoes.
4

Season

Open the lid and check that the potatoes are almost tender.

If the potatoes are very starchy, avoid hard stirring; spoon the sauce over them instead so the pieces stay intact.
5

Control

If liquid remains, keep the pot over medium heat and reduce for 3 to 5 more minutes.

Lower the heat when only a thin layer of sauce remains on the bottom and the potato surfaces look glossy.
6

Finish

Turn off the heat and drizzle in 1 tsp sesame oil, tossing gently with the remaining heat.

Scatter 1 tbsp chopped chives over the potatoes and serve while the reduced sauce still clings to each piece.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique: Gamja-jjim reduces soy and garlic sauce into a thick, glossy glaze over tender potatoes.
Finish cue: Lower the heat when only a thin layer of sauce remains on the bottom and the potato surfaces look glossy.
Avoid this: If the potatoes are very starchy, avoid hard stirring; spoon the sauce over them instead so the pieces stay intact.