If you are looking for something simple and yet delicious, try this recipe. No need to marinate so all you need to do is a few minutes of cooking and leave it to braise. The next best thing is besides oil and stock it uses no other seasonings!
Give this a try if you haven’t done so already. Another variation to this which I will try some day is to make the sauce separately and have it poured onto the fish which is already deep-fried. Had it in a restaurant last night and it did taste even better (but definitely not as healthy lol).