@Dutchy,
Ah thanks, possum. (Helpful & thoughtful, always!

)
But, having driven myself around the bend (sitting on the back veranda, leafing through all the cookbooks the recipe
could be in ....!

) I've stumbled across a recipe that's similar to what I'd planned. But not
quite the same, mind ...... with a marinade of hoisin sauce, honey, Chinese cooking wine & 5 spice powder.
Off to make the marinade now, so I can finally head off & do some shopping.
Thanks again, Dutchy!
How was your Friday night fish?