Here is my recipe for Sweet Chilli Sauce:
1 Tbsp Chilli Flakes
1 Tbsp Apple Cider Vinegar
1 Cup Water
1/2 Cup Sugar
1/2 tsp Garlic Powder
1 tsp Corn Starch
1/4 Cup Cold Water
Mix Chilli Flakes, 1/2 Cup Water, Vinegar, Garlic Powder and Sugar in a small sauce pan, and bring just to a boil, stirring constantly.
Reduce to a simmer.
Mix 1/4 Cup Cold Water and the Corn Starch together in a small container.
Add corn starch mixture to the sauce pan and stir.
Bring to a boil and cook until the sauce is no longer cloudy from the corn starch.
Set aside to cool.
Pour into a sealable container and store in the refrigerator until ready to use.