01 - Arrange chicken thighs or breasts in the slow cooker in a single layer.
02 - Whisk together soy sauce, honey, rice vinegar, brown sugar, garlic, ginger, and sesame oil in a small bowl. Pour mixture evenly over the chicken.
03 - Cover and cook on low setting for 4 hours until chicken is tender and easily shredded.
04 - Transfer chicken to a plate and set aside temporarily.
05 - Combine cornstarch with water to create a slurry. Whisk into the cooking liquid in the slow cooker. Cover and cook on high for 10-15 minutes until sauce reaches desired consistency.
06 - Shred chicken using two forks and return to the slow cooker. Toss thoroughly with thickened teriyaki sauce.
07 - Serve hot, topped with sliced green onions and sesame seeds.