Kimchi Jjigae (Kimchi Stew)

Variations

• Tuna kimchi jjigae: Swap the pork for a can of tuna (drained) for a softer, faster stew.
• Mackerel/saury kimchi jjigae: Add canned fish for a bold, briny depth.
• Extra pork: Double the pork and render it first for a richer broth.
• Budae style: Add instant ramen, sausage, and bean sprouts for a hearty hot pot.

Tips

• "More onion beats sugar" is two different mechanisms at once, and only one of them is sweetness. Menemen states the pair: onion brings "both sugar and water." Put sugar into a stew that has gone too sour and it masks the sourness at the tongue and nothing else. Onion adds sugar and adds liquid, which lowers the concentration of the acid itself, and it collapses as it simmers and leaves body behind. Where sugar hides the problem, onion dilutes it.
• Borscht runs the same argument backwards. That page says "beetroot is around 8% sugar by weight, so the broth is sweet before any sugar is added. The axis you are really adjusting is the acid." There the vegetable's sugar is the constant and the vinegar is the dial. Here it is the other way round: the acid is fixed by how far the kimchi has fermented and cannot be taken back out, so the vegetable's sugar is the only dial left.
• And this onion's sweetness is not the browned kind. Japanese curry and French onion soup build theirs by cooking onion down for a long time, and browning separates that caramelisation from the Maillard reaction. This onion goes in raw, with the water, and simmers fifteen minutes — no browning of either kind is available to it. What arrives is simply the sugar the onion already had, leaching into the broth: less deep than a browned sweetness, and it does not darken the stew.
• The sugar is still in the recipe, and the two are not substitutes. The pinch for young kimchi is there because an underripe jar is sharp rather than sour, and sugar covers a sharp edge. The onion is for a jar that has genuinely gone too far, where the amount of acid is the problem. Same symptom, two different remedies.
• Use well-fermented (aged) kimchi — if it's young, a pinch of sugar tames the sharpness.
• Searing the pork first to render its fat transforms the broth's depth.
• Add the tofu last so it stays soft and does not break apart.
• Anchovy-kelp stock takes the umami up a level.
• When it's too sour, adding more onion balances it with natural sweetness better than sugar.