You can buy some cakes from two old shops, Nanjing Lianhu Cake Group Store (Gong Yuan Street in Confucius Temple) and Samsung Cake Group Store (opposite Dayang Department Store in Xinjiekou), which are very suitable for the elderly.
In addition, Hongxiang chestnut (sugar fried chestnut, many street branches); Plum blossom cake (Matai Street, Shanxi Road); Confucius Temple champion fights; Duck Jane sketches (small packaged duck gizzards snacks) are also good.
Don't buy boxed snacks such as "Twelve Women in Jinling" and "Eight Beautiful Women in Qinhuai", because they are not good-looking, and they are fake specialties.