Chee-zoo-kaykee

My little girls love the sound of that word so much I don’t think they’ll ever pronounce “cheesecake” the same way again. But the time has come to ask: what is the technical difference between an American cheesecake and a Japanese one? I’m inclined to state the answer this way: American cheesecakes are custards, albeit very thick ones, and Japanese cheesecakes are soufflés. Again, very thick ones.

Look at the process for mixing a soufflé, then the process for mixing a Japanese cheesecake and you’ll find the two are very similar. Both involve combining a cheese and egg yolk-rich base mixture with an egg white foam, then baking the batter. The difference lies in the fact that a Japanese cheesecake batter has quite a bit more structural material in it, so it’s not inclined to fall like a soufflé.

What do I mean by structural material? Mostly starches like wheat flour and cornstarch (corn flour). A Japanese cheesecake has about five times the starch of a typical soufflé. Moistened and heated, those starches gelatinize and, as they cool, create a firm structure that holds the cake up and keeps the bubbles it contains from popping. Sugar also plays a role in structure, and a Japanese cheesecake contains a fair amount of that, too.

So what we have in a Japanese cheesecake is less an Asian adaptation of an American cake than a sweetened take on a savory French egg dish. Interesting…

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