Subway's Sweet Onion Chicken Teriyaki Sauce

Why I Love This Recipe
Oh I love this sandwhich at subway. The Sauce Is sooo yummy.
Ingredients You'll Need
1/2 cup light corn syrup
1 Tablespoon minced white onion
1 Tablespoon red wine vinegar
2 teaspoons white distilled vinegar
1 teaspoon balsamic vinegar
1 teaspoon brown sugar
1 teaspoon dry buttermilk
1/4 teaspoon lemon juice
1/8 teaspoon poppy seed
1/8 teaspoon salt
1 pinch cracked black pepper
1 pinch garlic powder
Directions
Combine all ingredients in a small microwave-safe bowl.
Heat mixture uncovered in the microwave for 1 to 1 1/2 minutes on high until mixture boils rapidly.
Whisk well, cover and cool