Sprinkle slow cooker with cooking spray.
Season chicken with salt on both sides and place on the bottom of the slow cooker
In a small bowl add honey, soy sauce, onion, ketchup, oil, garlic, and mix well. Pour over chicken.
Cook on low for 3-4 hours or until chicken cooked.
Remove chicken from the cooker and leave sauce. Dissolve cornstarch in the water and pour into the slow cooker. Mix with sauce.
Cook sauce on high for 10-15 minutes or until slightly thickened.
Cut chicken into medium pieces, return to the pot and dip in a sauce before serving.
Season with sesame seeds and serve with cooked rice.