Chicken Teriyaki

Name: Chicken Teriyaki
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Japanese
Ingredients: 1 cup low sodium soy sauce; 1/4 cup sake; 3 tablespoons rice vinegar; 1/3 cup brown sugar, or more to taste; 1 tablespoon white sesame seeds; 1/4 teaspoon crushed red pepper; 2 teaspoons peanut or canola oil; 1 teaspoon toasted sesame oil; 1 teaspoon kosher salt; 1/2 teaspoon pepper; 2 pounds boneless skinless chicken thighs, cut into 1 1/2inch pieces; 2 teaspoons grated fresh ginger; 1 teaspooon finely minced garlic; 1 bunch green onions, thinly sliced, divided