Japanese Soufflé Cheesecake


Prep Time	35 minutes
Bake Time	70–80 minutes
Cooling & Rest Time	4 hours (minimum 1 hour warm rest, 3 hours chilled)
Total Time	5 hours 50 minutes
Yield	8 to 10 servings
Pan Size	8-inch (20 cm) round cake pan with high sides (at least 3 inches deep)
Intensity / Difficulty	Intermediate to Advanced (requires precision meringue whipping and heat management)

Cream Cheese (full-fat block style): 250 g (8.8 oz), softened at room temperature
Unsalted Butter: 60 g (4.2 tbsp), cubed
Whole Milk: 100 ml (1/3 cup + 1 tbsp)
Large Egg Yolks: 6 (from large eggs at room temperature)
Pure Vanilla Extract: 1 tsp (5 ml)
Fresh Lemon Juice: 1 tbsp (15 ml)
Lemon Zest (optional): 1/2 tsp, finely grated
Cake Flour: 60 g (1/2 cup), sifted
Cornstarch: 20 g (2 tbsp), sifted
Fine Sea Salt: 1/4 tsp

Line the Pan: Lightly grease the bottom and sides of an 8-inch round cake pan. Line the bottom with a circle of parchment paper. Line the sides with a parchment strip extending 1.5 to 2 inches above the rim of the pan to support the cake’s rise.
Waterproof (if using springform): If your pan has a removable bottom, wrap the outside securely in 3–4 layers of heavy-duty aluminum foil to prevent water infiltration during the bain-marie bake.
Preheat: Position a baking rack on the lower-middle shelf. Preheat the oven to 160°C (320°F). Boil 1.5 to 2 liters of water for the water bath.

Melt the Dairy: Set a heatproof bowl over a saucepan of gently simmering water (double boiler / bain-marie), ensuring the bottom of the bowl does not touch the water. Add the cream cheese, cubed butter, and whole milk.
Smooth & Combine: Whisk continuously over low heat until the cheese and butter melt completely into a silky, uniform liquid without lumps. Remove the bowl from the heat and allow it to cool for 5 minutes until warm to the touch.
Incorporate Yolks & Aromatics: Whisk in the 6 egg yolks one at a time, blending thoroughly after each addition. Whisk in the vanilla extract, lemon juice, lemon zest, and salt.
Sift the Dry Ingredients: Place a fine-mesh sieve over the bowl. Sift in the cake flour and cornstarch. Whisk gently from the center outward until just combined and free of flour pockets.
Strain for Silkiness: Pour the batter through a fine-mesh sieve into a clean bowl, pressing through with a spatula. This removes any unblended egg or flour bits, ensuring a uniform, velvety texture. Set aside at room temperature.

Prep Whites: Ensure your mixing bowl and whisk attachments are completely grease-free. Place the chilled egg whites in the bowl.
Froth & Stabilize: Beat on medium-low speed until foamy and opaque. Add the cream of tartar.
Gradual Sugar Addition: Increase speed to medium. Gradually add the superfine sugar in three separate additions, beating for 30–45 seconds between each addition to allow the sugar crystals to dissolve.
Target Soft-to-Medium Peaks: Whip until the meringue holds soft, flexible peaks that gently droop over when the whisk is lifted (resembling an eagle’s beak).

Intensity Warning: Do not whip to stiff or dry peaks. Over-whipped meringue introduces excessive air, causing the cheesecake to rise rapidly, crack open at the dome, and severely deflate upon cooling.

Lighten the Base: Scoop roughly one-third of the meringue into the cream cheese batter. Whisk gently in broad circular strokes until completely integrated.
Final Fold: Pour the lightened cheese mixture into the remaining meringue bowl. Using a wide silicone spatula, fold the batter gently with an under-and-over motion from the bottom of the bowl upward, rotating the bowl 90 degrees after each stroke. Stop immediately once no white streaks remain.
Fill the Pan: Pour the batter into the lined cake pan from a height of about 6 inches to pop large air bubbles. Smooth the top with an offset spatula.
De-gas: Tap the cake pan flat against the counter 2 to 3 times to dislodge trapped pockets of air.

Set the Bain-Marie: Place the filled cake pan into a deep roasting tray. Transfer the tray to the oven rack. Pour hot boiled water into the roasting pan until it reaches halfway up the side of the cake pan.
Phase 1 (Initial Rise): Bake at 160°C (320°F) for 20 minutes.
Phase 2 (Slow Cooking): Reduce oven temperature to 140°C (285°F) and bake for 40 minutes.
Phase 3 (Drying the Surface): Turn off the oven entirely. Keep the oven door closed and let the cake rest inside for 10 minutes.
Phase 4 (Steam Release): Crack the oven door open by 1 to 2 inches (use a wooden spoon to hold it slightly ajar) and let the cake cool inside the oven for 10 to 15 minutes. This slow, step-down temperature drop prevents thermal shock and surface collapse.

Demold Warm: Remove the pan from the water bath. Peel away any outer foil. Place an inverted plate lined with parchment over the top of the cake pan, flip gently, and lift the pan off. Carefully peel away the side and bottom parchment papers. Place your final serving plate right-side up over the bottom of the cake and flip it back over.
Glaze (Optional): Brush the top lightly with warm, strained apricot jam for a glossy sheen, or leave matte.
Serve or Chill:
- Warm / Soufflé Style: Serve within 30 minutes for maximum jiggle, airy melt-in-the-mouth texture, and pronounced egg-custard aroma.
- Chilled / Cotton Cake Style: Cool completely to room temperature, then refrigerate for at least 3 to 4 hours (or overnight). Chilling densifies the crumb into an ultra-creamy, velvety texture while retaining its light lift.

Refrigeration: Store leftover cheesecake in an airtight container or under a cake dome in the refrigerator for up to 4 days.
Freezing: Wrap individual chilled slices tightly in plastic wrap followed by a layer of aluminum foil. Freeze for up to 1 month. Thaw overnight in the refrigerator before serving.

Values are calculated per serving based on an 8-slice yield.