My first attempt at a Soufflé CheesecakeThe taste very closely resembled a regular lemon cheesecake, but the structure is amazingly fluffy and light!

I like cheesecakes, but they often are so incredibly rich. After a couple of bites, I’m already full, especially if served as a dessert. Therefore, this recipe of this crustless fluffy cheesecake piqued my interest.

I don’t bake too often, so I never heard of these soufflé cheesecakes before I saw Yvonne Ruperti’s recipe over at They are insanely popular on the internet!

The recipe (serves 6-8)

The ingredients
  • 225g / 8oz cream cheese, softened
  • 55g / 2oz unsalted butter, softened
  • 100g / 3½oz granulated sugar, divided
  • Pinch of salt
  • 5 large eggs, separated
  • 1 packed tsp zest and 30ml / 2 tbsp fresh juice from 1 lemon
  • 125ml / ½ cup sour cream, at room temperature
  • 40g / 1 1/3oz cake flour
  • 15g / ½ oz cornstarch
  • 1g / ¼ tsp cream of tartar

Cream of tartar is the powdered form of tartaric acid, a substance that forms at the bottom of barrels when making wine. It is used mostly in recipes for cakes as a leavening agent (often in combination with baking soda), as a stabilizing agent in case of whisking egg whites or helping prevent sugar from crystallizing in the frosting. It is not commonly available in supermarkets in the Netherlands, so you have to revert to online baking shops or mini markets with imported products from the US/UK. After some browsing, it seems that using white vinegar or lemon juice is a decent substitute, but others advised to omit the cream of tartar altogether. I tried this one with lemon juice.

The instructions
  1. Adjust oven rack to lower-middle position and preheat to 170℃ / 340 
  2. Grease the bottom and sides of a 20cm/8″ springform pan and wrap the bottom half of the pan with foil to create a waterproof seal. Set into a roasting pan. (I used a 20cm/8″ silicon mold instead, so didn’t need to grease and seal it)
  3. Fit a stand mixer with a paddle attachment and beat the cream cheese, butter, 2 tbsp sugar, and salt on medium speed (about 2 minutes) until very creamy. Beat in egg yolks and lemon zest until smooth (about 30 seconds).
  4. Replace paddle attachment with the whisk attachment. Whisk in the lemon juice and sour cream on medium speed until combined.
  5. Sift the flour and cornstarch over the batter and whisk until completely combined. Transfer the mixture to a large bowl.
  6. Thoroughly wash and dry stand mixer bowl and whip egg whites and cream of tartar on high until frothy. Slowly pour in the remaining sugar and continue to the medium-peak stage.
  7. Fold a third of the meringue into the batter with a rubber spatula until almost combined. Gently fold in the remaining meringue in two more batches.
  8. Pour the batter into the springform pan and set on the oven rack. Pour about 5cm/2″ hot water into the roasting pan. Bake until the cake is golden and just firm in the center, 40 to 45 minutes.
  9. Remove roasting pan from oven and keep it in the water bath for 30 minutes.
  10. Set on a wire rack to cool for another 30 minutes, then chill in the fridge until fully set, about 3 hours.
  11. Serve. I did with a dollop of lemon curd:


What worked and what didn’t:
As you can see, cutting it up and serving it with a spatula instead of properly getting it out of the silicone mold made it look a bit rough around the edges. The cheesecake did “deflate” a bit while cooling down (after all, it is kind of an enormous soufflé), but there was some consolation from the experiences found online that deflation is a common phenomenon (phew…).

It tasted amazing, though. The slightly denser structure was not a problem at all as it still was not overpowering. Not very surprising as it only has about a third of the cream(cheese) compared to regular cheesecakes. We didn’t miss the usual crumble base either, so seconds were served (almost) guilt-free.

Recipe accuracy:
The recipe is accurate and easy to follow. Oddly enough, it did not mention how many servings there are. Anywhere between 6 and 8 seems accurate enough…

Suggested tweaks:
There are loads of discussions on the internet on how to prepare the soufflé cheesecakes (conventional oven vs. fan oven, middle vs. low position in the oven, use of regular vs. cake flour, etc., etc.) and tons of recipes are available. I resigned myself to a lengthy trial and error process…

Verdict: 9/10; Will certainly be made again

One thought on “Soufflé Cheesecake (a.k.a. Japanese Cotton Cheesecake)

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