Seafood Jajangmyeon (Black Bean Noodles with Squid and Shrimp)

The chunjang paste is fried in oil until its raw bitterness fades and a caramel-like sweetness emerges, then the seafood releases its juices into the sauce, building a layered umami absent from the standard version. Diced onion, potato, and zucchini soften into the sauce, contributing natural sweetness and body, while a cornstarch slurry thickens everything to a glossy, clinging consistency. The timing of the seafood matters: adding squid and shrimp too early causes them to tighten and turn rubbery, so they should go in during the final minutes of cooking once the vegetables have softened, allowing just enough heat to cook them through while keeping them springy. The chunjang itself requires at least five minutes of frying over medium heat before any other ingredients join the pan; cutting this step short leaves a harsh, bitter note in the finished sauce that no amount of sugar can fully correct. Poured over springy fresh wheat noodles, the dark sauce delivers both the familiar roasted-bean depth and an unmistakable ocean undertone.