Dark balsamic vinegar being poured from a bottle into a small glass bowl surrounded by red, green, and black grapes - Garna Zarina/Shutterstock ...

Peperonata, which are stewed Italian bell peppers, get the sweet and tart agrodolce treatment with red wine vinegar and sugar ...

Italian balsamic vinegars produced ... reduction,” balsamic glaze is made by thickening the vinegar over heat, which condenses its sweet flavor. Some balsamic glazes contain added sugar.