Quick Chicken-Sesame Rice Balls

INGREDIENTS

1 7.4 ounce package

precooked sticky rice (such as Annie Chun's)

2 tsp

rice vinegar, divided

1/4 tsp

sugar

1/4 tsp

kosher salt

2 tbsp

thinly sliced green onion tops

1 tsp

lower-sodium soy sauce

1/2 tsp

dark sesame oil

2 oz

skinless, boneless rotisserie chicken breast, finely shredded

Nori sheets for decoration (optional)