Korean Chilled Cucumber Soup
Oi-naengguk is a Korean chilled cucumber soup served in summer as a cold alternative to the hot soups (guk) that normally accompany Korean meals. When midsummer heat makes a steaming bowl of doenjang-guk unappealing, this icy broth takes its place at the table. Cucumber is sliced paper-thin and submerged in a broth of water seasoned with rice vinegar, soup soy sauce, salt, and sugar - a higher vinegar ratio intensifies the refreshing, palate-clearing sharpness. Ice cubes floated on top or at least thirty minutes of refrigeration are essential to achieve the chilling effect that defines the dish. Thinly sliced garlic infuses a mild pungency into the broth, and sesame seeds sprinkled on top add a nutty accent. Some versions include rehydrated dried seaweed, whose slippery texture contrasts with the cucumber's crisp snap. Alongside bibimbap or spicy banchan, oi-naengguk serves as a cooling counterbalance that tempers chili heat between bites.
Adjust Servings
Instructions
- 1
Julienne cucumber, lightly salt for 5 minutes, then squeeze moisture.
- 2
Combine water, vinegar, soup soy sauce, sugar, and garlic.
- 3
Taste and adjust with salt.
- 4
Add cucumber and chill for at least 10 minutes.
- 5
Add ice just before serving.
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