Wash the fish and pat it dry. Then place it in a plastic bag, or in the sink, to descale it using the back of a knife or a fish scaler tool.
Make about 3 (slanted) incisions in the flesh of the fish on both sides, scoring it, being careful not to go all the way through to the skin.
Add ingredients for the jerk seasoning and oil to a high-powered blender and pulse blend until a paste forms.
Rub the paste all over the fish and on the inside as well. Place in an airtight container or bag in the fridge and let it marinate for at least 4 hours up to overnight.
Set your grill to about 300F/149C.
Pro-tip: to help ensure the fish does not stick to the grates, I rub the grates with half a lemon or lime with a little oil.
Add the snapper and cook for about 12 – 15 minutes on one side. Then flip it over to cook for 10 – 12 minutes, or until the fish is firmer and the flesh is white.
Garnish and enjoy!