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 well combined.
03 - Pour the sauce mixture evenly over the chicken in the slow cooker.
04 - Cover and cook on high for 4 hours or on low for 6 hours until chicken is tender and reaches internal temperature of 165°F.
05 - Remove chicken from 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, turn to high, and cook uncovered for 10-15 minutes until sauce thickens.
07 - Return chicken to the thickened sauce and toss to coat evenly. Serve hot garnished with green onions and sesame seeds if desired.