
Fluffy clouds of zesty cheesecake create a heavenly treat that mixes bright citrus with creamy richness. This light mousse brings together tangy and sweet tastes perfectly, with its soft texture turning the traditional cheesecake into something wonderfully airy that dissolves right in your mouth.
I was looking for a cool summer treat that wouldn't heat up my kitchen, and I found this dessert that soon became my go-to party finish. Even my mother-in-law, who always says she "doesn't like citrus desserts," asked me how to make it after trying just one spoonful.
Key Components
- Cream Cheese: Gives that distinct tangy flavor that makes it truly taste like cheesecake
- Lemon Curd: Adds strong citrus kick and smooth texture throughout
- Heavy Cream: Turns into soft peaks that make the thick cream cheese feel light
- Unflavored Gelatin: The magic helper that holds everything together so it slices perfectly
- Graham Crackers: Form a crunchy, buttery base that works wonderfully against the soft mousse
Making Your Dreamy Mousse
- Base Building:
- Mix graham cracker bits with sugar and melted butter until everything's wet. This easy mix creates a tasty foundation that brings a nice crunch against the soft mousse.
- Preparing Gelatin:
- Scatter gelatin over lemon juice and water, then let it sit for five minutes exactly. This key step makes sure the gelatin melts properly later, keeping gritty bits out of your smooth dessert.
- Whipping Cream:
- Beat heavy cream until stiff peaks form, slowly adding powdered sugar. The right whipped cream gives structure and airiness that turns regular cheesecake into fluffy mousse.
- Mixing Flavors:
- Beat cream cheese until it's totally smooth before adding lemon curd and the rest of your sugar. This step prevents lumps and helps everything blend together perfectly.
- Careful Combining:
- Add whipped cream to the cheese mix bit by bit, starting with a small amount to loosen the mixture before gently folding in what's left. This way, you'll keep all those tiny air bubbles that make mousse so light.

At a lunch party last summer, I put these mousses in clear cups so everyone could see the layers, and got so many compliments that I started trying different seasonal flavors. The lemon version is still the one friends text me about weeks ahead to make sure I'll bring it to our get-togethers.
Great Companions
Enjoy these light mousses with fresh berries, especially blueberries or raspberries, which taste amazing with lemon. For a bigger dessert, add some crispy shortbread cookies on the side. A glass of bubbly Prosecco or sweet dessert wine makes it even better for grown-up parties.
Tasty Twists
Switch things up by using lime curd for a more tropical taste. Make a raspberry-lemon version by putting a layer of raspberry sauce between the crust and mousse. If you love chocolate, use chocolate cookie crumbs instead of graham crackers and mix in some chocolate shavings.
Keeping It Fresh
You can make these mousses up to a day ahead and keep them covered in the fridge. For the best look, add the whipped cream and decorations just before serving. You can freeze individual portions for up to a month; let them thaw in the fridge overnight for the best texture.
After trying this recipe many times, I've learned the real magic comes from balance - not just in taste, but in texture too. The difference between the buttery crust and floaty mousse makes a dessert that feels fancy yet comforting. Whether it's for a special celebration or just because you want something nice, these lemon cheesecake mousses bring a bit of dessert magic to any table.

Frequently Asked Questions
- → Can I prepare this in advance?
- Absolutely! You can whip it up 2 days early. Keep it in the fridge with a lid and garnish just before serving.
- → What can I swap heavy cream with?
- Heavy cream is ideal, but whipped topping like Cool Whip works too. Skip powdered sugar if using pre-sweetened options.
- → Is bottled lemon juice okay?
- Fresh lemons taste best, but bottled works if needed. Don't skip real lemon zest—it holds key flavors!
- → How do I firm it up if it's runny?
- Chilling helps a lot, or pop it in the freezer for 20-30 minutes before serving to thicken it faster.
- → What pairs well with this?
- Serve alongside cookies like shortbread or graham crackers, or add fresh berries for a fruity touch.