Guangdong naigaizai is a special snack in Guangdong catering culture. Its origin can be traced back to the Qing Dynasty in Guangdong, and it is a traditional snack in Cantonese cuisine culture. Nail cover is a kind of food similar to glutinous rice cake, which is made of sticky rice flour and often eaten with various desserts or flower jam.

The flavor of the nail-covered children made in various parts of Guangdong Province is ever-changing, and the commonly used ingredients are bean paste, mung bean, peanut, sesame and lotus seed paste. The process of making the nail cover is very particular. First, you need to knead the glutinous rice flour into small balls, then flatten them into small cakes, put them in a special baking box, then cover them, bake for about 11-15 minutes, and then you can eat them out of the pot.

Guangdong naigaizai is not only unique in taste, but also an indispensable part of Guangdong catering culture. Its cultural connotation is rich and colorful, and it is often served as a birthday meal and a blessing gift at weddings, birthdays and festivals. The "nail cover" in the nail cover means to hope that life will be safe and hold the bottle, which means that everything will go smoothly and get better and better. Therefore, Guangdong Nail Gai Tsai is an indispensable part of Guangdong catering culture and has very important cultural connotation.