01 - Arrange chicken thighs or breasts in the bottom of the slow cooker.
02 - Whisk together soy sauce, honey, rice vinegar, 2 tablespoons water, brown sugar, garlic, and ginger in a medium bowl until 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 165°F internal temperature.
05 - Remove cooked chicken from the slow cooker and shred or slice according to preference.
06 - Mix cornstarch with 1 tablespoon water in a small bowl to create a slurry. Stir into the sauce in the slow cooker.
07 - Turn slow cooker to high setting, leave uncovered, and cook for 10-15 minutes until sauce reaches desired thickness.
08 - Return chicken to the thickened sauce and toss to coat thoroughly. Serve hot with green onions and sesame seeds.