Step 1

Over medium heat, whisk together the balsamic vinegar and brown sugar in a small saucepan.

Step 2

Bring the mixture to a gentle simmer and adjust the heat to maintain a low simmer.

Step 3

Continue to simmer until reduced by half and thickened to a light syrup. Keep whisking every few minutes.

Step 4

Remove from heat, and allow to cool down before using or storing.