Prepare Ingredients: Start by chopping the chicken into bite-sized chunks. If using the optional ingredients, chop the Vidalia onion and green pepper into similar-sized pieces for even cooking.
Mix Sauce: In a medium bowl, whisk together 1 cup of pineapple juice, 1/4 cup packed brown sugar, and 1/3 cup low sodium soy sauce until the mixture is smooth and the sugar is dissolved.
Assemble Crock-Pot: Place the chicken chunks and any optional veggies, like the chopped onion and green pepper, in the Crock-Pot. Pour the prepared sauce over the top, ensuring everything is coated evenly.
Cook: Set the Crock-Pot to low and let it cook for 4-6 hours, or on high for 2-3 hours. You can tell it's ready when the chicken is tender and easily shredded.
Serve: Once cooked, stir the chicken and sauce mixture to combine and serve over steamed rice or alongside a fresh salad for a refreshing contrast.
To achieve the best results, make sure the chicken reaches an internal temperature of 165°F. Also, for those who prefer a thicker sauce, take 1 tablespoon of cornstarch and mix it with 2 tablespoons of water, then stir this into the sauce during the last 30 minutes of cooking.