Pour the pineapple juice, apple cider vinegar, extra virgin olive oil, annatto seeds, all the spices for the marinade, along with the garlic cloves and yellow onion into a high powered blender. Gradually move the speed to high and blend the marinade until smooth.
½ cup apple cider vinegar, ¼ cup extra virgin olive oil, 3 tbsp annatto seeds, 3 tbsp smoked paprika, 2 tbsp kosher salt, 1 tbsp black pepper, 1 tbsp ground cumin, 1 tbsp ground coriander, 2 tsp dried oregano, 1 tsp garlic powder, 1 tsp chili powder, ¼ tsp ground cloves, ¼ tsp ground cinnamon, 1 yellow onion, 8 garlic cloves, 6 ounces pineapple juice