In a 6qt stockpot Bring sugar, water, and blueberries to a boil. Continue a rolling boil until blueberries start to pop open. With a Potato Masher crush up and at least half the berries by pushing down through the water to the bottom of the pan.  Let the liquid reduce by approximately 1/3rd until it is a thick liquid. Strain the liquid using a Colander into a large bowl. Reserve The berries for additional deliciousness.  Let the liquid cool and then store in an airtight container in the refrigerator for up to 2 weeks. I like to use a Fancy Glass Bottle because it is fun to have out when making cocktails but any airtight container works.