I have a huge patch of chives in my garden.  Just keeps getting bigger each year.  This year I read about cutting the flower heads off of the chives and putting them in vinegar to make a chive flavored vinegar. I gave it a whirl here are my results. The vinegar turned a really pretty color.  I haven't tried it yet.  I hope it tastes as good as it looks.  I have since taken the flowers out and it's an even darker shade of rose now.  Kind of fun.