In a mixing bowl, whisk together the honey, soy sauce, rice vinegar, minced garlic, ground ginger, sesame oil, salt, and pepper until well combined.
Place the chicken thighs in the slow cooker and pour the honey garlic sauce over the chicken, ensuring that all pieces are well covered.
Cover the slow cooker with the lid and cook on low for 4 hours, or on high for 2 hours if you’re in a hurry.
After the cooking time is completed, check to see if the chicken is thoroughly cooked; it should be tender and easy to shred.
Using two forks, shred the chicken in the slow cooker and mix it with the sauce. Let it sit for an additional 10 minutes to absorb more flavor.
Serve the honey garlic chicken over cooked rice and garnish with sliced green onions.
For a thicker sauce, remove the chicken once it's cooked. Pour the sauce into a saucepan and simmer until it reduces to your desired thickness.
Consider pairing this dish with steamed vegetables or a fresh salad for a complete meal.