Panang curry is a Thai curry that sits between a red curry and a massaman in character. Thicker than a red curry, richer, less brothy, and with a natural sweetness from coconut milk that isn't typical of green curry. The flavor is complex in a way that a single-note spice blend can't replicate: roasted dried chilies, lemongrass, galangal, kaffir lime, shrimp paste, and roasted peanuts all ground into a paste that forms the entire backbone of the dish.
What makes panang curry different from red curry? Two things primarily. Panang paste contains ground peanuts, which red curry paste doesn't. And panang is cooked with far less liquid than red curry, producing a thick, almost creamy sauce that clings to the protein rather than sitting as a loose broth around it. Panang curry sauce should coat the back of a spoon heavily. Red curry pours off.
Where does panang curry come from? It's Central Thai in origin, with the name likely derived from Penang, the Malaysian island, reflecting the culinary exchange between southern Thailand and northern Malaysia. It appears in Thai royal cuisine records from the early 20th century and has been a staple of Thai restaurant menus internationally since Thai food began reaching global audiences in the 1970s and 1980s.
What protein works best? Beef is the most traditional choice for panang, specifically slow-braised beef that becomes tender enough to yield to the thick sauce. Chicken thighs are faster and equally good. Tofu and mixed vegetables work for a vegetarian version. Shrimp cooks in 3 minutes and is excellent but the sauce needs to be fully developed before the shrimp goes in since there's no time to build flavor during a 3-minute cook.
What does panang curry taste like? Rich, slightly sweet, deeply savory, and gently spicy with a roasted nuttiness from the peanuts in the paste. The kaffir lime leaves stirred in at the end add a citrus-floral note that lifts the whole dish and keeps the coconut richness from feeling heavy.
The biggest mistake people make with panang curry? Using too much liquid. Panang is a thick curry. If yours looks like a soup, the coconut milk was added all at once before the paste was properly fried. The paste needs to fry in the coconut cream first, before any additional liquid goes in, to develop the flavor and set the sauce consistency.