Add the vinegar, water and sugar to a pan and heat over a medium heat, stirring to dissolve the sugar.
Add the jalapenos and green chili (if using) to a blender or food processor and pulse to break down. Don't over mix, just pulse a few times, you don't want to make a paste.
Add the processed jalapeno to the pot and bring to the boil.
Simmer for 5 minutes and then take off the heat.
Mix together the cornflour and 6 tablespoons of water and pour into the pot. Stir for a minute or so to help thicken the sauce.
- Pulse don't blend the jalapeños. If you over blend them, they will be too liquidy.
- This sauce will thicken as it cools. Once cooled, if you prefer a thicker sauce, simply reheat it and stir in more cornflour and water.
- Let the sauce cool completely before storing.
- Nutritional values are based on one of 18 servings.
Calories: 120kcal | Carbohydrates: 31g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 12mg | Potassium: 26mg | Fiber: 1g | Sugar: 28g | Vitamin A: 101IU | Vitamin C: 11mg | Calcium: 2mg | Iron: 1mg