01 - Place the chicken thighs or breasts in the bottom of the crockpot, ensuring even distribution for consistent cooking.
02 - Whisk together the soy sauce, honey, rice vinegar, brown sugar, sesame oil, garlic, and ginger in a medium bowl until the sugar dissolves completely.
03 - Pour the teriyaki sauce mixture evenly over the chicken in the crockpot.
04 - Cover and cook on high for 4 hours or on low for 6-7 hours, until the chicken reaches an internal temperature of 165°F and is tender.
05 - Remove the chicken from the crockpot and shred using two forks or slice into bite-sized pieces as desired.
06 - Mix the cornstarch and water in a small bowl to create a slurry. Stir this mixture into the remaining sauce in the crockpot.
07 - Return the shredded chicken to the crockpot, stir to coat thoroughly with the thickened sauce, and cook on high for an additional 15-20 minutes until the sauce reaches desired consistency.
08 - Serve the teriyaki chicken over steamed rice, garnished with sliced green onions and toasted sesame seeds.