Concave cake

Concave cake

Place of origin	Taiwan
Main ingredients	egg, honey, sugar, flour

Concave cake (Chinese: 凹蛋糕; pinyin: āodàngāo, half-cooked cake) became popular in Chinese society after a Taiwanese variety show introduced it. The cake filling leaks out when sliced, similar in appearance to a volcano. The traditional recipe combines egg, egg yolk, honey, white sugar and low-gluten flour. Filling flavors range from traditional honey to exotic flavors like cheese, matcha and chocolate.^{[citation needed]}

Concave cake was initially considered unsuccessful due to its namesake shape. However, it caught traction in China, and the cake is now part of popular culture.