Start by creating a marinade that will give the chicken its delicious flavor. In a mixing bowl, combine the pineapple juice, minced garlic, lime juice, soy sauce, Sriracha (if using), and fresh ginger. Whisk until well blended.

Next, add the chicken pieces to the bowl, ensuring they’re fully coated. Cover the bowl and let it marinate in the refrigerator for at least 30 minutes. But if you can wait a few hours, go for it! This step infuses the chicken with incredible flavor.

While your chicken is soaking up those tasty flavors, it’s time to prepare your grill. Preheat it to medium-high heat. If you're using a charcoal grill, you want to get that juicy, smoky flavor going. A gas grill will work just fine, too; just make sure those grates are nice and hot!

Once the grill is ready, place the pineapple slices on it. Grill them for about 3-4 minutes on each side until they have those beautiful grill marks and a slight caramelization. This step intensifies their sweetness and adds a hint of smokiness.

Now, onto the star of the show! Remove the chicken from the marinade, allowing any excess liquid to drip off. Place the chicken on the hot grill. Cook the chicken for about 6-7 minutes per side, depending on thickness. To ensure it's done, your chicken should reach an internal temperature of 165°F (75°C). For an extra layer of flavor, brush some of your favorite barbecue sauce on the chicken in the last few minutes of grilling.

Once cooked, add the grilled chicken to a serving platter, topped with the grilled pineapple slices. You can drizzle extra barbecue sauce over the top or serve it on the side for dipping. Trust me, the sweet and savory combination is simply irresistible!