Hoisin gives this ketchup a deep, earthy sweetness while honey, soy sauce, sherry, and five spice powder add the distinctive additional notes of char siu sauce—the Chinese answer to barbecue sauce.
'char siu' on Serious Eats
Sweet and earthy Chinese char siu, set on the backdrop of smoky and tender pork shoulder steaks.
Char Siu doesn't refer to a sauce particularly, but the final product after this "Chinese barbecue sauce" is applied to pork that is hung onto fork skewers and roasted. Still, there's a fairly common base set of ingredients including hoisin, honey, soy sauce, sherry, Chinese five spice powder that imparts the ubiquitous flavor and glossy sheen to Char Siu.