Clean your flowers by dunking them in cold water. Shake off the water and let dry on a towel.
Cut the chive flower at the base of the stem to separate the flower, this will make the one flower broken up into many pieces.
Add the pieces of the flower to a glass jar and pour the vinegar over. Let it sit in a cool dark place 7-14 days Strain the flowers and pour the vinegar into an airtight glass jar
Store in a dark place and use up to 1 year