In a medium mixing bowl, combine the honey, low-sodium soy sauce, minced garlic, grated ginger, apple cider vinegar, sesame oil, black pepper, and red pepper flakes (if you desire some heat). Use a whisk to blend the ingredients thoroughly into a harmonious marinade.
Arrange the chicken thighs in the slow cooker, making sure they are skin-side up. Pour the honey garlic marinade over the chicken, ensuring that each thigh is generously coated with the sauce.
Cover the slow cooker with its lid and set the device to low heat. Allow the chicken to cook for 4 to 6 hours, or for a quicker option, set to high heat for 2 to 3 hours, until the meat is cooked through and tender enough to fall off the bone.
Once the cooking time is complete, carefully remove the chicken thighs from the slow cooker and transfer them to a serving platter. For those who prefer a thicker sauce, pour the cooking liquid into a small saucepan. Simmer it over medium heat for approximately 5 to 10 minutes until it reduces slightly and thickens.
Drizzle the enhanced sauce over the chicken thighs, and for a vibrant finishing touch, garnish with the sliced green onions and a sprinkling of sesame seeds.
Serve the dish alongside fluffy steamed rice or a refreshing salad for a complete and satisfying meal!
Notes
For an elegant presentation, serve the chicken over rice and drizzle with sauce.