Combine the sugar, water, and blueberries in a small saucepan over moderate heat. Stir occasionally until the sugar dissolves. Bring to a simmer.

Simmer for 10-15 minutes. Let cool completely in the saucepan.

Once completely cooled, add to a blender. Blend until totally liquefied.

Pour the syrup through a fine mesh strainer and into a small mason jar to remove any seeds or skin. Add lemon juice and stir to combine.

Add two or three teaspoons to your favorite beer. Stir and then drink!