Supermoon Japanese Cheesecake: Light, Jiggly and Creamy

Supermoon Japanese cheesecake is a soufflé-style cheesecake with a tender, airy crumb and a gently creamy finish. Cream cheese, eggs and a little flour form the base; careful folding and a gentle water-bath bake help it rise and stay soft, while a slow cool helps prevent collapse.

Ingredients

8 oz (225 g) full-fat cream cheese, softened and cut into pieces
¼ cup (60 ml) whole milk
4 tbsp (56 g) unsalted butter
6 large eggs, separated, at room temperature
½ cup (100 g) granulated sugar, divided
1 tsp vanilla extract
1 tsp finely grated lemon zest (optional)
¾ cup (95 g) cake flour, sifted
2 tbsp (16 g) cornstarch, sifted
¼ tsp fine salt
¼ tsp cream of tartar
1 tsp lemon juice or white vinegar, for the meringue
Powdered sugar, for serving (optional)
Boiling water, for the water bath

Instructions

Set a rack in the lower-middle of the oven and heat it to 320°F (160°C). Line the bottom of an 8-inch (20 cm) round cake pan with parchment. Line the sides too, leaving the paper about 2 inches (5 cm) taller than the pan. If using a springform pan, wrap its outside securely in two layers of foil to keep water out. Set a roasting pan large enough to hold the cake pan nearby.
Separate the eggs while cold, taking care not to let any yolk get into the whites. Cover and let them come to room temperature while you prepare the batter. Set a fine-mesh sieve over a bowl and sift together the cake flour, cornstarch and salt.
Put the cream cheese, milk and butter in a heatproof bowl. Set it over a saucepan of barely simmering water, making sure the bowl does not touch the water. Stir until smooth, then remove it from the heat. Whisk in the egg yolks one at a time, followed by the vanilla and lemon zest if using. Sift the dry ingredients over the mixture and whisk just until smooth. Strain through the sieve into a large bowl to remove any lumps; let the mixture cool until warm, not hot.
In a clean, dry bowl, beat the egg whites with the cream of tartar and lemon juice or vinegar at medium speed until foamy. Gradually add the sugar in three additions, beating until the meringue is glossy and holds a soft peak. When you lift the whisk, the peak should bend over; stiff, dry peaks are harder to fold in smoothly.
Stir one-third of the meringue into the cream-cheese batter to loosen it. Gently fold in the remaining meringue in two additions, sweeping a spatula around the bowl and through the center. Stop when no large white streaks remain. Pour into the prepared pan and tap it lightly on the counter once or twice to release large air pockets.
Place the cake pan in the roasting pan. Set both in the oven, then carefully pour boiling water into the roasting pan until it reaches about 1 inch (2.5 cm) up the sides of the cake pan. Bake for 20 minutes at 320°F (160°C), then lower the oven to 285°F (140°C) without opening the door and bake for 40 minutes more. The top should be golden and the center should wobble gently rather than look liquid.
Turn off the oven and leave the door closed for 10 minutes. Then crack the door open slightly and let the cake stand in the oven for 10 minutes more. Carefully lift the cake pan from the water bath, remove the foil if used, and cool on a rack. Allow at least 1 hour for cooling before serving; the cake will settle a little as it cools. For a firmer, easier-to-slice texture, refrigerate it for at least 1 hour after it has cooled.
Peel away the parchment, dust with powdered sugar if desired, and serve at room temperature or lightly chilled. This is an egg-based cake: USDA FSIS guidance gives 160°F (71°C) as the safe minimum for egg dishes. If checking with a thermometer, insert it into the center without touching the pan; return the cake to the oven if it has not reached that temperature.

Tips

Use room-temperature cream cheese and eggs. Cold ingredients can leave lumps or make the batter seize; strain the yolk batter if needed before folding in the meringue.
Fold gently but thoroughly. Leaving big patches of meringue creates uneven holes, while vigorous stirring deflates the air that gives the cake its lift.
Keep the water bath shallow and prevent leaks. A solid cake pan is simplest; for a springform pan, use two snug layers of foil and avoid letting water splash over the rim.
Cake flour gives the softest crumb. If unavailable, replace it with ¾ cup (95 g) all-purpose flour, removing 1½ teaspoons and adding 1½ teaspoons cornstarch. The result may be slightly less delicate.

Serving Suggestions

Serve wedges plain to show off the light texture, or add a restrained dusting of powdered sugar. Fresh strawberries, raspberries or sliced citrus offer a tart contrast; lightly sweetened whipped cream makes the dessert richer. For neat slices, use a thin knife warmed in hot water and wiped dry between cuts. The cake is especially soft at room temperature, while chilling makes it more custardy and easier to portion.

Variations

For a citrus version, add the zest of one small lemon or orange and serve with a little citrus zest on top. For a subtle tea flavor, sift 1 to 2 teaspoons of matcha with the flour and cornstarch; expect a gentle earthy bitterness and a green crumb. You can also replace the vanilla with ½ teaspoon almond extract, which gives a more pronounced aroma. Avoid adding wet fruit or extra liquid to the batter, as either can weigh it down or interfere with the bake.

Storage and Reheating

Because this cake contains eggs and dairy, refrigerate it within 2 hours of baking or serving. Keep it covered in an airtight container and use within 3 to 4 days. It is best served chilled or brought briefly to room temperature; reheating is not necessary and can make the crumb rubbery. If you prefer it warm, microwave an individual slice for about 5 to 8 seconds, just to take off the chill, and do not leave the cake at room temperature for more than 2 hours. For longer storage, freeze slices tightly wrapped for up to 1 month and thaw overnight in the refrigerator; the texture may be slightly less airy after thawing.

Frequently Asked Questions

Why did my Japanese cheesecake sink?
A small amount of settling is normal. A dramatic dip can happen if the meringue was under- or over-whipped, the batter was folded too roughly, or the oven door was opened before the structure set. The gradual oven cooling in this recipe helps reduce sudden temperature changes.

How can I tell when it is done?
The top should be lightly browned and the center should wobble softly, not slosh. For the egg-dish safe minimum, check the center with a food thermometer and look for 160°F (71°C), following USDA FSIS guidance. If the surface browns too quickly before the center reaches temperature, loosely tent it with foil.

Can I use a springform pan?
Yes. Wrap the outside in two layers of foil, pressing the foil up the sides so water cannot seep in. A one-piece cake pan is more reliable in a water bath, but either works if the springform seal is secure.

Can I make it without a water bath?
A water bath is strongly recommended because it provides gentle, humid heat and helps the cake bake evenly. Without it, the edges may cook too quickly, the surface may crack, and the cake can rise and fall more sharply.

Can I make the cake ahead?
Yes. Bake it a day ahead, cool it, and refrigerate it covered. Chilling firms the cake and makes slicing easier. For the softest texture, let slices stand at room temperature for about 15 minutes before serving.

Is this the same as regular cheesecake?
No. Japanese-style cheesecake is leavened mainly by whipped egg whites and baked as a light sponge-like cake. New York-style cheesecake is denser and creamier, with a heavier cream-cheese filling and often a crust.

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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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