You can buy balsamic glaze in the grocery store and that’s fine. But, you can make it yourself and be one of the cool kids.

1 cup (237 ml) balsamic vinegar

Pour the vinegar into a sauce pan and bring it to a gentle boil.
Turn your stove exhaust on high and stand a bit back from the stove to avoid the strong smell of the vinegar.
Reduce the heat and simmer the vinegar, stirring it often, until it is reduced to the thickness you want. Maple syrup thickness is what I go for. It takes about 12 to 15 minutes.
The glaze will also thicken a bit more as it cools.
Store it in a glass jar in the cupboard. It keeps like any other vinegar.

Options and extras:
Here is a list of things you can drizzle balsamic glaze on in addition to crostini and bruschetta:

  1. Roasted vegetables, especially Brussels sprouts.
  2. Grilled vegetables, especially veggie kabobs at the family barbecue
  3. Caprese salad
  4. Pizza
  5. Some folks like it on homemade vanilla ice cream