In a small pot, whisk together all ingredients over medium high heat - allow to bring to a boil while whisking constantly.
Reduce heat to low and simmer, stirring until thickened - around 5 minutes.
Allow to cool in the refrigerator overnight.
This sauce keeps indefinitely if stored in a sealed jar in the fridge.
Calories: 42kcal | Carbohydrates: 9g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 191mg | Potassium: 7mg | Fiber: 1g | Sugar: 8g | Vitamin A: 24IU | Vitamin C: 1mg | Calcium: 4mg | Iron: 1mg