01 - In a small saucepan, combine the vinegar, garlic, onion, peppercorns, bay leaves, cinnamon stick, cloves, optional brown sugar, and salt.
02 - Heat the mixture over medium heat until it reaches a gentle simmer, then immediately remove from heat.
03 - Place the sliced fresh red chilies into a clean, sterilized glass jar.
04 - Carefully pour the hot spiced vinegar over the chilies in the jar, ensuring all spices are included.
05 - Allow the jar to cool to room temperature, then seal tightly with a lid.
06 - Refrigerate the jar and allow the flavors to infuse for at least two to three days before use.
07 - Strain the vinegar to remove solids if preferred, or leave them for continued infusion.