01 - 
                Rinse chicken thighs and pat dry.
              
              
              
                02 - 
                In a large bowl or gallon-size ziplock bag, combine all ingredients except for the chicken. Mix well.
              
              
              
                03 - 
                Remove ½ cup of the sauce mixture and set aside for serving the chicken.
              
              
              
                04 - 
                Add the chicken thighs to the remaining sauce, mixing well to ensure the chicken is submerged in the marinade. Cover or seal and refrigerate for at least 4 hours, or up to overnight.
              
              
              
                05 - 
                Heat the grill to medium-high heat (400°F). Lightly brush the grates with oil.
              
              
              
                06 - 
                Place the chicken on the grill and cook for about 10 minutes without turning. Flip and continue to cook until the internal temperature reaches 165°F (approximately another 10 minutes). Discard the marinade the chicken was in.
              
              
              
                07 - 
                When the chicken is halfway done cooking, add the pineapple rings to the grill and cook until golden on each side. Remove everything from the grill.
              
              
              
                08 - 
                Brush the reserved marinade over the chicken. Optionally, heat the reserved sauce in a small saucepan to thicken before brushing it over the chicken.