1. Slice the chicken breasts into bite-sized pieces and toss them in a bag with the arrowroot powder to coat.
2. Whisk together the remaining ingredients. Pour into the slow cooker.
3. Add the chicken to the slow cooker and mix to combine.
4. Cook on low for 6 hours.
Serve the slow cooker teriyaki chicken on your choice of grain or vegetable and top with green onions.
How To Make Slow Cooker Teriyaki Chicken