請你詳細說說用的是哪一種烤模？有沒有做防沾處理？
如果用的是鋁製的脫底模，完全不用鋪紙或防沾處理。倒扣放涼之後就可以脫模了。

I used 鋁製的脫底模, 沒有做防沾處理. I just poured the cake batter into the baking pan and gentley tapped the pan once before putting it in the oven. I took it out when I checked the cake with a tooth pick and it came out clean. I tapped the cake again and right away turn it up side down to cool. As I went back to check on it a few minutes later, the most of the center of the cake fell off, the rest of the side still stuck to the pan. Was there something else I may haved done wrong?

你是用8吋配方，但是用9吋烤盤嗎？
那有可能是因為蛋糕太薄，表面積太大，所以倒扣的時候中央部份掉下來了。
也可以查一下蛋糕的底盤有沒有油星殘留？之前有網友說，因為她的烤模沒有充分洗乾淨，留有殘餘的油脂，結果烤戚風總是失敗，洗乾淨之後就成功了。

Dear Wendy:

I was using a 8" for the 8" recipe. I will make sure the bottom of pan is clean and let you know. Thank you.