Remove the dirt from the fish and wash it with salt and water or lime and water and pat it dry with a paper towel then set it aside.To make the Marinade, combine all the ingredients together, black pepper,ginger, Garlic, chill pepper, Make about 3 deep cut or more on the fish depending on how big your fish is,
then begin to brush the marinade over make sure you reach every corner baste every corner of the fish with the marinade including the deep cut. then place it in fridge for some minutes.

In a blender and blend pepper, spring onion and onion till it becomes a smooth paste. Pour it inside a bowl and set it aside. in a frying pan make the stew.

Make sure you reach every corner baste every corner of the fish with the marinade including the deep cut.
Cover up the fish and place it in the fridge for at least 20 minutes or overnight. This will allow the Marinade to penetrate deep inside the Fish.
Remove the Fish from the Fridge, uncover the foil paper then rub it again with some Marinade and place it in a 350°F preheated Oven for the first 15 minutes
After 15 minutes, flip it to the other side and rub it with some marinade again.

Enjoy with fried plantain and Fried yam