Steps
1. In a small saucepan, pour the balsamic vinegar and add honey if using.
2. Bring the mixture to a gentle boil over medium heat.
3. Reduce the heat to low and let it simmer, stirring occasionally, until the liquid reduces to about 2 tablespoons (approximately 15-20 minutes).
4. Season with salt and pepper to taste.
5. Remove from heat and let it cool slightly before using.