Step 1

In a medium saucepan add orange juice, white and brown sugar, rice vinegar, soy sauce, ginger, garlic, and red chili flakes. Heat for 3 minutes over medium heat.

Step 2

In a small bowl, whisk 1 tablespoon of cornstarch with 2 tablespoons of water to form a paste.

Step 3

Add the paste to orange sauce and whisk together. Continue to cook for 5 minutes, until the mixture begins to thicken.

Step 4

Once the sauce is thickened, remove from heat and stir in orange zest.