What are the places in Nanjing that are suitable for learning cooking?

Duck shops in Nanjing always sell both red and white flavors, namely roast duck and salted duck. On the crispy skin, Nanjing roast duck can't compare with Beijing roast duck, and on the fresh and juicy taste, Nanjing roast duck can't compare with Cantonese roast. At first glance, the taste of Nanjing Roast Duck was not too surprising, but its ugly Nanjing Roast Duck, after sprinkling a bag of red marinade, was covered with sweet and sour marinades between the crispy tender meat, and suddenly the color, aroma and taste were all out, which meant that the entrance was fragrant and I couldn't stop. This shop is obviously called Zhangyun salted duck, but the most popular one is roast duck. In fact, salted duck is also good, but it is not recommended much with Han Fuxing in the front. Another bazi roast goose pot-stewed restaurant is famous for its salted duck in Zhangyun, but its popularity is not small. The characteristics of these two recommended stores are not obvious, but they are better than others in every aspect, so I won't describe them much. If you come to Nanjing people's home as a guest, he may not recommend this duck to you, and some people will even think without hesitation that the one near their home is the best.