This lemon mousse is creamy, airy, and bright with fresh citrus flavor. Made with white chocolate, lemon juice, and cold heavy whipping cream, it sets into a smooth no-bake dessert that feels elegant but takes very little effort.

Why You’ll Love This Recipe

This recipe uses only three main ingredients and has a light, fluffy texture without eggs or gelatin. It is perfect for making ahead because the mousse needs time to chill and set. The flavor is balanced: sweet from the white chocolate, tangy from the lemon juice, and rich from the whipped cream.

It is also easy to serve for guests. Spoon it into small glasses, chill, and garnish with lemon zest, berries, or mint before serving.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• 8 ounces white chocolate, chopped
• 1/3 cup fresh lemon juice
• 1 cup cold heavy whipping cream

Directions

Melt the chopped white chocolate in a microwave-safe bowl in short intervals, stirring between each one, until smooth. You can also melt it gently over low heat using a double boiler.

Whisk the lemon juice into the melted white chocolate until fully combined. The mixture may thicken slightly. Refrigerate it for 20 minutes so it cools before being added to the cream.

In a separate bowl, beat the cold heavy whipping cream with a hand mixer or stand mixer until soft peaks form.

Gently fold the whipped cream into the lemon-white chocolate mixture. Mix slowly so the mousse stays light and airy.

Cover the bowl and refrigerate for at least 2 hours, or until firm. Once set, divide into 8 small glasses or bowls and serve chilled.

Servings and timing

Servings: 8

Prep time: 5 minutes
Cook time: 5 minutes
Chilling time: 2 hours
Total active time: 10 minutes
Total time including chilling: 2 hours 10 minutes

Variations

Add 1 teaspoon lemon zest for a stronger citrus flavor.

Top with fresh berries for color and freshness.

Use dairy-free whipping cream and dairy-free white chocolate for a dairy-free version.

Add a small splash of vanilla extract for a softer, sweeter flavor.

Serve the mousse in mini tart shells for a simple lemon mousse tart.

Storage/Reheating

Store lemon mousse covered in the refrigerator for up to 1 week.

To freeze, place it in a freezer-safe container and freeze for up to 6 months. Thaw overnight in the refrigerator before serving.

This dessert should not be reheated. Serve it cold for the best texture.

FAQs

Can I make lemon mousse ahead of time?

Yes. It is a great make-ahead dessert because it needs chilling time to set properly.

Can I use bottled lemon juice?

Fresh lemon juice gives the best flavor, but bottled lemon juice can work in a pinch.

Why is my mousse runny?

The cream may not have been whipped enough, or the mousse may need more chilling time.

Can I use milk instead of heavy cream?

No. Milk will not whip properly and will not create the same mousse texture.

Can I add lemon zest?

Yes. Lemon zest adds a stronger lemon flavor and a fresh aroma.

Can I freeze lemon mousse?

Yes. Freeze it in a sealed container, then thaw it in the refrigerator overnight.

Can I make this dairy-free?

Yes. Use dairy-free white chocolate and plant-based whipping cream.

Why does my mousse have lumps?

The chocolate may not have melted fully, or the mixture may have been folded too roughly.

Can I use this mousse as cake filling?

It is best served in cups because it is soft and airy. It may be too delicate for cake layers.

How do I decorate lemon mousse?

Top it with lemon zest, whipped cream, berries, or fresh mint.

Conclusion

Lemon mousse is a simple, refreshing dessert with a creamy texture and bright citrus flavor. With only three main ingredients and a short active prep time, it is perfect for parties, family dinners, or anytime you want an easy chilled dessert.

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