Editor's note: Use this recipe to make Chef David Chang's Bo Ssäm.
Ssämjang—a spicy fermented bean paste sold in Korean markets—is a traditional accompaniment to grilled meats. Ssämjang is like the love child of two Korean sauces: a mix of denjang (Korea's funkier answer to Japanese miso) and kochujang, a spicy chile paste.
Anyway, rather than just thinning out the ssämjang with oil or water as is most commonly done, we've allied ssämjang with extra kochujang and added vinegar in the mix to bring up the acidity of the sauce.