Place chicken breasts or thighs in the bottom of your crockpot.
Pour in soy sauce, honey, garlic, ginger, and rice vinegar. Stir gently or leave as is — this is a true “dump and go” recipe!
Cover and cook on LOW for 6–8 hours or HIGH for 3–4 hours, until chicken is tender.
Remove the chicken, shred or slice, and set aside.
In a small bowl, whisk cornstarch and water together. Stir the mixture into the crockpot sauce.
Let it cook for another 10–15 minutes, until the sauce thickens.
Return the chicken to the crockpot and coat it with the teriyaki sauce.
Serve hot over rice, noodles, or vegetables, and garnish with sesame seeds or green onions.