Song gao (Chinese: 鬆糕; pinyin: sōng gāo; lit.

'loose cake'; Shanghainese: Son1-kau1, Wu Chinese pronunciation: [soŋ kɔ]) is a Shanghai snack composed of rice flour, sugar, and water, with azuki beans embedded throughout the cake.

Giant pink-colored azuki beans with a diameter of about 1 inch (25 mm) are embedded on top of the cake; conventional sized azuki beans are embedded inside the cake.

The cake also has a red bean (azuki) paste filling.

This dessert is steamed,[1][2] as a large round cake and is then partitioned into sections for eating.