Ingredients:

1 cup vinegar
1 cup water
1/2 cup brown sugar
1/4 cup soy sauce
2 cloves garlic, minced
1 teaspoon cornstarch (optional, for thickening)
Red chili flakes or chopped chili (optional, for heat)

Instructions:

In a saucepan, combine vinegar, water, brown sugar, soy sauce, and minced garlic.
Optionally, add red chili flakes or chopped chili for extra heat.
Bring the mixture to a simmer over medium heat, stirring occasionally until the sugar has dissolved.
If desired, mix cornstarch with a tablespoon of water to create a slurry and add it to the sauce to thicken, stirring constantly.
Continue simmering for a few more minutes until the sauce reaches your desired consistency.
Remove from heat and let it cool slightly before serving with fishballs or your preferred snacks.
Enjoy your flavorful fishball sauce!