We made Jerk Sauce once from an online recipe... I don't remember everything but it was about 2cps of OJ, 1 large Onion, 4 cloves garlic, and 1 hot pepper (normally Hab but Jala works) mix in a blender until no chunks are left. Add somewhere about 1-3 teas (some people don't like it strong) each of Cloves, Nutmeg, All Spice, Cinn, and Black Pepper. Salt to taste and 1 tbsp of Thyme. Mix again. Put sauce and Meat in a sealed bag for 8-24hrs. Simmer the sauce so extra can be added to the meat after it is BBQed.
If you want a fast dry rub only use the dry spices and add powdered onion and garlic. But not the same as the marinade.
My boys don't like the spices so I make them plain chicken and then I am able to add a Hab to the sauce to please DH.