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Christmas Lemon Cheesecake Mousse

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Total Time: 30 minutes (plus 4 hours chilling)
Active Time: 20 minutes
Difficulty Level: Easy
Yield: 6 servings

A cloud-like, no-bake dessert that combines the bright, sunny flavor of lemon with the rich, creamy indulgence of cheesecake. This elegant mousse is light yet decadent, finished with a festive topping of whipped cream, lemon zest, and delicate cookie crumbs. Perfect for cutting through the richness of a holiday meal, it’s a show-stopping finale that feels celebratory but is surprisingly simple to make.

Ingredients

For the Mousse:

  • 8 oz (225g) full-fat cream cheese, softened to room temperature

  • 1 cup (240ml) heavy whipping cream, cold

  • 1/2 cup (100g) granulated sugar

  • 1/3 cup (80ml) fresh lemon juice (from about 2-3 large lemons)

  • 1 tablespoon finely grated lemon zest

  • 1 teaspoon pure vanilla extract

  • Pinch of fine sea salt

For the Garnish:

  • 1/2 cup (120ml) heavy whipping cream, cold

  • 1 tablespoon powdered sugar

  • 6 small lemon wedges or curls

  • 2-3 gingersnap or shortbread cookies, finely crushed

  • Additional lemon zest

Equipment

  • Electric hand mixer or stand mixer

  • 2 large mixing bowls

  • Rubber spatula

  • Fine grater/zester

  • Citrus juicer

  • 6 serving glasses or ramekins

  • Piping bag with star tip (optional)

Instructions

Step 1: Prepare the Components

Zest and juice your lemons first. Ensure your cream cheese has been sitting out for at least 30 minutes to become perfectly soft and spreadable. Chill your mixing bowl and beaters for the whipping cream for best results.

Step 2: Make the Lemon Cheesecake Base

In a large bowl, beat the softened cream cheese with an electric mixer on medium speed until completely smooth and creamy, about 1-2 minutes. Scrape down the sides of the bowl. Add the granulated sugar, lemon juice, lemon zest, vanilla extract, and salt. Beat again on medium speed until all ingredients are fully incorporated and the mixture is smooth, about 2 minutes. The sugar should be completely dissolved. Set aside.

Step 3: Whip the Cream

In your chilled bowl, pour in 1 cup of cold heavy whipping cream. Using the electric mixer (with clean beaters), beat on medium-high speed until soft peaks form. This means the cream will hold its shape briefly when the beaters are lifted, but the peaks will gently curl over. Be careful not to over-whip to stiff peaks, as you’ll be folding it.

Step 4: Fold & Combine

Add about one-third of the whipped cream to the lemon cheesecake mixture. Using a rubber spatula, fold gently to lighten the dense base. This makes it easier to incorporate the rest without deflating the cream. Gradually add the remaining whipped cream in two more additions, folding gently but thoroughly each time until no white streaks remain and the mixture is a uniform, airy, pale yellow.

Step 5: Assemble and Chill

Divide the mousse evenly among 6 serving glasses or ramekins. Gently tap each glass on the counter to settle the mousse. Cover lightly with plastic wrap and refrigerate for at least 4 hours, or ideally overnight. This chilling time is crucial for the flavors to meld and the texture to set into a perfect, spoonable mousse.

Step 6: Garnish and Serve

Just before serving, prepare the garnish: Whip the remaining 1/2 cup of heavy cream with the powdered sugar until firm peaks form. Pipe or dollop a swirl of sweetened whipped cream onto each mousse. Sprinkle with crushed cookies, a final dusting of lemon zest, and add a lemon wedge or curl to the side. Serve immediately.

Chef’s Notes & Tips

  • Room Temperature is Key: Soft cream cheese is non-negotiable for a smooth, lump-free mousse.

  • Fresh Lemon Juice: For the brightest, cleanest flavor, avoid bottled juice.

  • Folding Technique: Use a broad, gentle motion—cut through the center, scoop around the side, and turn over. Repeat until combined.

  • Make-Ahead Magic: This dessert is perfect for preparing a full day ahead. Simply add the final garnishes just before serving.

  • Flavor Twist: For a festive touch, fold 1/4 cup of finely chopped white chocolate or crushed peppermint candy into the mousse before chilling.

Nutrition Information (Per Serving)

  • Calories: ~485 kcal

  • Total Fat: 38g

    • Saturated Fat: 24g

  • Cholesterol: 125mg

  • Sodium: 180mg

  • Total Carbohydrates: 32g

    • Dietary Fiber: 0g

    • Sugars: 28g

  • Protein: 4g

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