Place the chicken in the slow cooker, arranging them evenly at the bottom. If you are using onions, add them in now too.
Mix up the rest of ingredients in a small bowl. Pour the honey garlic sauce over the chicken, ensuring each piece is coated.
Cook on low heat for 6-7 hours or on high heat for 3-4 hours, or until the chicken is cooked through and tender. If you have to have a thicker sauce, mix in a cornstarch slurry and cook for an additional 15 mins at the end. Garnish with sesame seeds!
