2-3tbspextra virgin olive oil or melted coconut oil
Add all the ingredients except the chicken in the bowl of your food processor and process into a liquid puree.
Place the chicken in a shallow container with fitting lid (or resealable plastic bags) and pour the pineapple marinade all over it. Move the pieces of chicken around to ensure that they get completely covered. Place in the fridge and set to rest overnight.
Preheat your outdoor grill to high.
Rinse the pieces of chicken under running water and pat them dry.
Rub them well with the oil until every piece is coated all over.
Place the pieces of chicken on the grill, smooth side down and lower the heat to medium. Close the lid and let the chicken cook for about 4-5 minutes, or until it gets nicely marked and starts to turn opaque on the side opposite to the grill.
Flip the pieces of chicken and continue cooking until cooked through, about 3-4 minutes.