Prep 5 mins
Cook 1 hr
Another great recipe by Kathleen Daelemans
- Place onions, balsamic vinegar and brown sugar in a 2 quart non-reactive pot with tall sides on medium-high heat.
- Bring to a boil, stirring constantly.
- Immediately reduce heat to low, cover and simmer (stirring occasionally) until thickened and marmalade-like. About 1 hour.