Describe the train of thought: first, you can write about your favorite Shenzhen specialties, then write about the production process of specialties, and finally write about your love for specialties. For example:

My hometown is in Shenzhen, and my favorite specialty is Guangming pigeon, which is called "the first pigeon in the world" and is one of the three major specialties in Shenzhen. Because of its unique delicacy, it has become a well-known food for Shenzhen citizens.

Bright young pigeons are carefully selected, and their growing period is about 25 days. These young pigeons are raised with whole grains (corn, sorghum, hemp, peas and wheat) and drink pollution-free groundwater. Pigeons in this period are not only fresh and tender, but also rich in various easily absorbed nutrients.

The most critical and unique step in producing bright young pigeons is that all young pigeons should be soaked in aged salt water. The longer the brine, the more fragrant it is. The materials used in salt water are very special. It is made of more than 20 different medicinal materials and cooked in soup at the same time. Each material has a strict proportion, and the bittern prepared in different proportions tastes completely different.

Bright young pigeons are not only popular among ordinary citizens, but also enjoyed by many stars, celebrities and politicians. This is my favorite Shenzhen specialty, Guangming Pigeon. If you have a chance to come to Shenzhen, I will let you try my favorite bright squab.