Clean the fish; make sure to cut off the fins, scales, etc. and rinse it off with water
Make 3-4 incisions on both sides of the fish and place it in a large bowl
Soak the Tilapia in 3-4 tablespoons of Distilled White Vinegar, fresh lemon juice from one lemon, and 2-3 tablespoons of salt for a few minutes (around 10-15 minutes) then rinse
Pat the fish dry and place in a dry bowl
In a blender, pulse onion, peppers, ginger, suya pepper, and 2 tablespoons of oil
Taste the mixture and add salt, if needed
Squeeze 1/2 lemon all over cleaned fish and wearing gloves generously fill the inside and outside of the fish with the blended ingredients
Wrap the bowl with cling wrap and place it in the fridge to marinate overnight*
When ready to bake, preheat oven to 350ºF/177ºC/Gas Mark 4
Line baking sheet with parchment paper/aluminum foil and generously spray with cooking spray
Lightly shake the bowl and remove the cling wrap
Transfer the coated Tilapia to the greased baking sheet, add sliced onions/other veggies (if using) and bake in the oven for 30 minutes using the middle rack in the oven
After 30 minutes, open the oven and using a cooking brush, brush the top of the fish with the juices from the fish
Serve with Fried Yams, Banku, Kenkey, etc. and enjoy!