Mr Puffy Japanese Cheesecake Recipe (Cotton Soft)

Mr Puffy Japanese cheesecake is the cloud-like, jiggly dessert that took the internet by storm—a chiffon-soft cake with a delicate cream cheese flavor and a texture that wobbles like a soufflé. Unlike dense New York cheesecake, this version uses whipped egg whites folded into a cream cheese batter, then bakes low and slow in a water bath to keep it moist and tender. The result is a tall, golden cake that slices like a dream and melts on your tongue.

Ingredients

8 oz (226 g) cream cheese, softened
1/2 cup (120 ml) whole milk
1/4 cup (60 g) unsalted butter
6 large eggs, separated (room temperature)
1/2 cup (100 g) granulated sugar, divided
1/4 cup (30 g) cake flour
2 tbsp (16 g) cornstarch
1 tsp lemon juice (optional, for brightness)
1/4 tsp cream of tartar
1/4 tsp salt
Powdered sugar, for dusting

Instructions

Preheat your oven to 320°F (160°C). Grease a 9-inch (23 cm) round cake pan and line the bottom with parchment paper. Wrap the outside of the pan with aluminum foil to make it waterproof for the water bath.
In a small saucepan over low heat, combine the cream cheese, milk, and butter. Stir constantly until the mixture is smooth and fully melted—do not let it boil. Remove from heat and let cool for 5 minutes.
In a large bowl, whisk the egg yolks until pale. Slowly pour in the warm cream cheese mixture, whisking constantly to prevent curdling. Add the lemon juice if using.
Sift the cake flour, cornstarch, and salt into the yolk mixture. Whisk until just combined—no lumps. Set aside.
In a clean, dry bowl, beat the egg whites with an electric mixer on medium speed until foamy. Add the cream of tartar, then gradually add the sugar, 1 tablespoon at a time, while beating on high speed. Beat until stiff peaks form—the whites should hold a firm peak when the whisk is lifted, but not be dry.
Fold one-third of the egg whites into the yolk batter using a rubber spatula to lighten it. Then gently fold in the remaining whites in two additions, being careful not to deflate the mixture. The batter should be uniform and airy.
Pour the batter into the prepared pan. Tap the pan on the counter a few times to release any large air bubbles.
Place the cake pan into a larger roasting pan. Pour hot water (about 160°F / 70°C) into the roasting pan until it reaches about 1 inch (2.5 cm) up the sides of the cake pan.
Bake at 320°F (160°C) for 25 minutes. Then reduce the oven temperature to 300°F (150°C) and bake for another 40–50 minutes, or until the top is golden brown and a skewer inserted into the center comes out clean (the cake should still jiggle slightly in the center).
Turn off the oven and leave the cake inside with the door slightly ajar for 15 minutes. This gradual cooling prevents cracking.
Remove the cake from the water bath and let it cool in the pan for 10 minutes. Then invert onto a serving plate, carefully peel off the parchment, and dust with powdered sugar.

Tips

Room temperature ingredients: Cold eggs or cream cheese will make the batter lumpy and the egg whites won’t whip as well. Set everything out 30 minutes before you start.
Don’t overfold: Overmixing deflates the egg whites, resulting in a dense, rubbery cake. Fold just until no streaks remain—a few small white streaks are fine.
Water bath depth: If the water evaporates during baking, the cake may crack. Check halfway through and add more hot water if needed.
Substitutions: No cake flour? Use 3 tbsp (24 g) all-purpose flour plus 1 tbsp (8 g) cornstarch. For a dairy-free version, use vegan cream cheese and plant-based milk/butter, but the texture will be slightly less tender.

Serving Suggestions

Serve this cheesecake slightly warm or at room temperature with a dusting of powdered sugar. It pairs beautifully with fresh berries, a drizzle of honey, or a dollop of whipped cream. For a classic Japanese café experience, enjoy it with a cup of green tea or coffee. The cake is delicate, so use a serrated knife and gentle sawing motions to slice it cleanly.

Variations

Matcha: Add 1 tbsp (8 g) matcha powder to the flour mixture for an earthy twist.
Lemon: Replace the lemon juice with 1 tbsp of lemon zest for a brighter citrus flavor.
Chocolate: Swap 2 tbsp (16 g) of cake flour with cocoa powder and add 2 oz (56 g) melted dark chocolate to the cream cheese mixture.
Vanilla bean: Scrape the seeds of one vanilla bean into the yolk mixture for a fragrant, floral note.

Storage and Reheating

Store leftover cheesecake in an airtight container in the refrigerator for up to 4 days. Because it’s so moist, it doesn’t dry out easily. To serve cold, simply take it out 20 minutes before eating. To reheat, microwave a slice for 10–15 seconds until just warm—this revives the fluffy texture. You can also freeze the whole cake (or slices) wrapped tightly in plastic wrap and foil for up to 1 month; thaw overnight in the fridge before serving.

Frequently Asked Questions

Why did my cheesecake crack? Cracks usually happen when the oven is too hot or the cake cools too quickly. Always use a water bath, and after baking, let the cake rest in the turned-off oven with the door ajar to ease the temperature change.

Can I make this without a water bath? Yes, but the texture will be less moist and the top may crack. If you skip it, place a pan of hot water on the oven floor to add steam.

Why is my cake dense and not fluffy? This usually means the egg whites were overbeaten (dry and clumpy) or deflated during folding. Beat to stiff but glossy peaks, and fold gently with a spatula.

Can I use a springform pan? Yes, but wrap the outside tightly with foil to prevent water from seeping in. Also, check for leaks before pouring the batter.

How do I know it’s done? A skewer inserted into the center should come out clean, but the cake should still wobble slightly. If the top browns too quickly, tent it with foil.

Can I make this gluten-free? Yes, use a gluten-free all-purpose flour blend in place of cake flour, and ensure your cornstarch is certified gluten-free. The texture will be slightly more delicate.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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