他是喜欢吃想oatmeal raisin 那样的软cookie吗？

加多些油会使cookie像凤梨酥一样，加多些鸡蛋我就不知道会怎么样了。

但是如果他是爱吃软的cookie的话，据说秘诀就是先融化奶油，还有不要烤得时间太长。这是google得来的
Chewy： Try melting the butter before adding it to the sugars when mixing. Remove cookies from the oven a few minutes before they are done, while their centers are still soft but are just cooked through. The edges should be golden. Use brown sugar, honey or molasses as a sweetener. Let cookies cool on the pan for several minutes after baking before transferring to cooling rack.