Trader Joe's does have balsamic glaze.
The Trader Joe's balsamic glaze is made for Trader Joe's by a trusted supplier, that brings in authentic, IGP- designated Aceto Balsamico di Modena, to make each batch of balsamic glaze complex as well as enticingly aromatic and give it a delectably dense consistency.
Many other stores also have balsamic glaze, including Walmart, Kroger and many other grocery stores.
Balsamic glaze is a dark, concentrated, intensely flavored vinegar that is made wholly or partially from grape must, freshly crushed grape juice which has all the skins, stems and seeds.
The ingredients in balsamic glaze are 2 cups balsamic vinegar 1/2 cup brown sugar (optional for extra sweetness).
To make balsamic glaze you combine the ingredients in a medium saucepan.
Simply combine the balsamic vinegar and brown sugar (if using).
Stir well to dissolve the sugar.
Cook the Glaze by bringing the mixture to a gentle boil over medium heat.