Creating your Slow Cooker Hawaiian Pineapple Chicken is a straightforward process when you follow these steps:

1. Prepare the Chicken: Place the chicken thighs at the bottom of the slow cooker.
2. Mix Ingredients: In a separate bowl, combine soy sauce, brown sugar, minced garlic, and ground ginger. Stir until the sugar dissolves.
3. Add Vegetables: Layer the sliced bell peppers and onions on top of the chicken.
4. Pour Sauce: Pour the soy sauce mixture evenly over the chicken and vegetables.
5. Add Pineapple: Drain some of the juice from the pineapple chunks and then add them to the slow cooker on top of everything.
6. Cook: Cover the slow cooker and set it to low for 4-6 hours or high for 2-3 hours, until the chicken is fully cooked and tender.
7. Thicken Sauce (Optional): If you prefer a thicker sauce, mix cornstarch with a bit of water to create a slurry. In the last 30 minutes of cooking, add the slurry to the slow cooker and stir.
8. Finish Cooking: Make sure the internal temperature of the chicken reaches at least 165°F (73.8°C).
9. Garnish and Serve: Once cooked, fluff the chicken with a fork and garnish with sesame seeds and fresh cilantro.

These simple steps will guide you in preparing this delightful Hawaiian dish effortlessly.