Slow Cooker Chicken Teriyaki

skinless chicken thighs

  cup soy sauce

cup  rice vinegar

  Tbsp sesame oil

  cup brown sugar

  Tbsp honey

  tsp ground ginger

  clove garlic (minced)

onion (chopped)

tsp  crushed red pepper (to taste)

cornstarch + 2 Tbsp water (mixed together to make a cornstarch slurry)

Hot cooked white or brown rice (for serving)

Optional garnish: green onions (sesame seeds)