Chinese Pepper Steak

Ingredients

• ▢1 pound sirloin steak cut into 1/4 inch thick strips
• ▢1/4 cup soy sauce
• ▢1 tablespoon rice vinegar
• ▢1 tablespoon sesame oil
• ▢2 tablespoons cornstarch
• ▢1/2 cup beef broth
• ▢1 tablespoon sugar
• ▢1 to 3 teaspoons black pepper
• ▢2 teaspoons minced ginger
• ▢4 cloves crushed garlic
• ▢2 large green bell peppers cut into 1-inch squares
• ▢1 large red bell pepper cut into 1-inch squares
• ▢1 large white onion sliced
• ▢4 tablespoons vegetable oil divided
• ▢1/4 cup sliced green onions optional