Light Lemon Soufflé Mousse Cake with Creamy Lemon Topping

Method: Lemon Cloud Mousse Base

1. Preparation: Line an 8 inch square baking pan with a single sheet of parchment paper, ensuring the paper extends over the edges for easy removal.

2. Dissolve Gelatin: Pour the sugar-free lemon soda into a medium saucepan. Sprinkle the gelatin powder evenly over the top and whisk gently until the gelatin is fully incorporated and no clumps remain.

3. Heat: Place the saucepan over medium heat. Allow the mixture to become hot, but do not allow it to simmer or boil. Whisk briefly to ensure the gelatin is completely dissolved, then remove from heat.

4. Cool & Whip: Pour the mixture into the bowl of a stand mixer and let it cool to room temperature (about 15-20 minutes). Once cool, use the wire whisk attachment and beat on the highest speed for approximately 15-20 minutes. The mixture will thicken, turn opaque white, and develop a meringue-like texture that holds soft peaks.

5. Set: Pour the fluffy mousse into your prepared pan. Smooth the surface and place the pan into the refrigerator to set for 30–60 minutes, or until the surface is firm and springy.

 Method: Creamy Lemon Topping

1. Combine: In a clean bowl, mix the low-fat soft cheese (Quark), lemon zest, lemon juice, vanilla extract, and granulated sugar substitute.

2. Mix Thoroughly: Stir until the mixture is completely smooth and the sweetener is dissolved. Adjust the amount of sweetener if necessary.

3. Chill: Keep the topping refrigerated until the mousse base is fully set.

 Assembly and Serving

1. Frost: Once the Mousse Base is firm, carefully spread the creamy Lemon Topping evenly over the top layer.

2. Final Chill: Return the cake to the refrigerator until you are ready to serve.

3. Slice: Use the parchment paper handles to lift the entire cake from the pan.¹ Slice the cake with a large, sharp knife into 12 equal portions for serving.