Step 1

Take chillies in a blender and crush them coarse. Set this aside till use.

Step 2

Take vinegar and sugar in a sauce pan. Mix well so it is melted. Now heat this and bring them to a boil. Boil gently for 1 min till sugar is melted completely

Step 3

Add in chillies and boil on high flame for 8 to 10 mins.

Step 4

Take it off the heat and let it cool down.

Step 5

Once it is completely cooled, it will thicken more.. Store in a clean jar in fridge.