01 - Season the chicken thighs evenly with salt and pepper, then arrange them in a single layer at the bottom of the slow cooker.
02 - In a medium mixing bowl, whisk together the honey, soy sauce, minced garlic, ketchup, olive oil, dried thyme, and crushed red pepper flakes until well combined. Pour the sauce evenly over the seasoned chicken.
03 - Cover the slow cooker and cook on the low setting for 4 to 5 hours, or until the chicken is fork-tender and cooked through to an internal temperature of 165°F.
04 - For a richer, thicker sauce, whisk the cornstarch and water together to form a smooth slurry. Carefully remove the chicken from the slow cooker, stir the slurry into the cooking liquid, then set the slow cooker to high and cook for 10 to 15 minutes until the sauce has thickened. Return the chicken to the sauce and coat evenly.
05 - Transfer the chicken to a serving platter, spoon the sauce over the top, and finish with a generous sprinkle of chopped fresh parsley and sesame seeds. Serve immediately alongside steamed rice and your choice of vegetables.