Cut chicken breasts into cubes. Mix the first 6 ingredients together and pour over raw chicken in a large bowl. Cover and refrigerate for at least 1 hour

In a medium pan, mix the 1/4 cup soy sauce, 1/4 tsp ginger, 1 Tbsp peanut butter, and 2 tsp sugar until well blended. Heat on medium heat

Stir in the chicken broth and the garlic

Cook marinated chicken, including marinade, in a separate pan until fully cooked

Mix fully cooked chicken and marinade into the chicken broth mixture

Stir in broccoli and cook until heated through

Cover and simmer for 20 minutes

Mix in a separate bowl the cornstarch, water, and cider vinegar

Stir into the chicken mixture until bubbly and thick

Serve over rice