Easy Chinese Pepper Steak Recipe

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 granulated sugar
• 1 to 3 teaspoons black pepper
• 2 teaspoons grated ginger
• 4 cloves minced 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