Thalassery biryani comes from the coastal town of Thalassery (Tellicherry) in northern Kerala, where the Malabar coast's Muslim trading families adapted the dish to local rice and seafood. Thalassery was a major spice port from the 1500s onward, trading pepper, cardamom, and cinnamon with Arab and European merchants, and its food shows that history — the local biryani uses Kerala's own native short-grain rice (kaima or jeerakasala) instead of basmati, and incorporates coconut, curry leaves, and fennel in ways no northern biryani does. The recipe is still considered a Mappila (Kerala Muslim) heritage dish and is most famously sold at Paris Restaurant in Thalassery, founded in 1939 and still owned by the original family. The distinguishing features are clear once you've tasted one: a tiny, fragrant rice grain that looks almost like cumin seeds (kaima), a noticeable hit of fennel and curry-leaf aroma, and richer ghee usage than most southern styles. Chicken is the most common meat — bone-in pieces marinated in shallot-heavy masala — but the Malabar variant occasionally uses prawn or kingfish, which would be heretical further north. Pair with raita, lime pickle, pappadam, and a side of pazham pori (fried plantain). The texture is unmistakably moist and fragrant rather than dry-and-separate. In the US, look for it at Kerala-owned restaurants in the Northeast corridor (Edison, Hicksville, Boston suburbs) and increasingly in Houston. If the menu lists 'Thalassery' or 'Malabar' biryani, that's the one. Often listed under 'Mappila biryani' in older menus.