Gochujang

Korean fermented chili paste. Made from red pepper flakes, glutinous rice, fermented soybean powder, and salt — the fermentation is what distinguishes it from simple chili paste. The result has heat, but also sweet depth from the rice, umami from the fermented soy, and a complexity that plain chili flakes lack entirely.

In cooking it behaves less like a hot sauce and more like a flavor base: it needs to be cooked in fat to bloom its flavor, the way tomato paste or miso does. A tablespoon sautéed in olive oil transforms a pasta sauce in the same register as adding 'nduja — building heat into the fat rather than sitting on top of the dish.