将洋葱剥皮切碎。 Peel and chop the onion.
将胡萝卜和芹菜切片然后把胡萝卜片一切四瓣。 将意式培根切成小块。 Slice the carrot and celery and then quarter the carrot slices. If not already diced, cut the pancetta into small pieces.
中火加热橄榄油,将洋葱、胡萝卜、芹菜和意式培根炒制约5分钟。 Sauté the onions, carrots, celery and pancetta in olive oil over medium heat for approx. 5 minutes.
加入牛肉馅,再烹制约10分钟。 Add the ground beef and cook for approx. 10 additional minutes.
加入鸡汤和番茄膏,并铲起粘锅的食材。盖上锅盖,小火煮制约2小时。 Combine the chicken broth and tomato paste and then use it to deglaze the pan contents. Cover the pan with a lid and let simmer over low heat for approx. 2 hours.
在煮制时间即将结束前,按照包装说明准备 意面。 Shortly before the cook time has elapsed, prepare the spaghetti according to the package instructions.
将煮好的意面搭配肉酱、帕尔马奶酪和罗勒食用。 Serve the cooked spaghetti with the bolognese sauce, Parmesan and basil.