1 cup balsamic vinegar
in a small saucepan, add balsamic vinegar and bring to a boil.
lower hear to medium low and reduce by 1/2, which will take approx 20-30 minutes.
Take saucepan off heat. Cool 10 minutes in saucepan, then transfer to a jar for storage.
This recipe can easily be doubled.
The balsamic reduction will keep in the fridge for 2-3 weeks.