01 - Place chicken thighs or breasts in the bottom of the slow cooker.
02 - Whisk together soy sauce, honey, rice vinegar, 2 tbsp water, brown sugar, garlic, and ginger in a medium bowl until combined.
03 - Pour the teriyaki sauce evenly over the chicken.
04 - Cover and cook on high for 4 hours or on low for 6 hours until chicken is tender and cooked through.
05 - Remove chicken from the slow cooker and shred or slice as desired.
06 - Mix cornstarch with 1 tbsp water to create a slurry. Stir into the sauce in the slow cooker.
07 - Turn slow cooker to high and cook uncovered for 10-15 minutes until sauce thickens.
08 - Return chicken to the sauce and toss to coat. Serve hot garnished with green onions and sesame seeds.