Croatian White Onion Sauce is a traditional condiment that adds a burst of flavor to various dishes. It is made by slowly caramelizing onions until they turn golden brown and sweet, then combining them with vinegar and spices. The result is a tangy and slightly sweet sauce that pairs well with grilled meats, roasted vegetables, or as a dip for bread. This versatile sauce is easy to make and can be stored in the refrigerator for several days.