Add the balsamic vinegar, red wine, brown sugar and the rosemary sprigs and bring to a rapid boil. Reduce the heat and simmer uncovered for 5 minutes. Add the broth, return to a boil, reduce the heat to low and simmer for another 15 minutes. Discard the rosemary sprigs.
加入香醋、红酒、红糖和迷迭香枝快速沸腾。 减少热量和煮了5分钟。 加入肉汤,返回至沸腾,减少热量低,再慢火煮15分钟。 丢弃迷迭香枝。
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