This Lemon Blueberry Shortbread Mousse Cake is an exquisite dessert that shines at any event or serves as a delightful treat for yourself. Its zesty lemon mousse and sweet blueberry compote combined with a buttery shortbread crust offer a refreshing yet rich flavor profile. Perfect for summer gatherings or special occasions, this cake will surely impress your guests and satisfy your sweet cravings.

Why You’ll Love This Recipe
- Refreshing Flavor: The combination of lemon and blueberry creates a bright and zesty taste that is perfect for warm weather.
- Easy to Prepare: With straightforward steps, this dessert comes together quickly, making it accessible for bakers of all skill levels.
- Stunning Presentation: The layered look of the mousse cake makes it visually appealing, ideal for impressing friends and family.
- Versatile Dessert: Great for celebrations like birthdays or holidays, this cake suits various occasions and can be enjoyed year-round.
- Make-Ahead Option: Refrigerate the cake ahead of time, allowing you to prepare it in advance and save time on the day of your event.
Tools and Preparation
Before diving into the delicious recipe, gather your tools to make the process smooth and enjoyable. Having everything ready ensures a seamless baking experience.
Essential Tools and Equipment
- Food processor
- Mixing bowls
- Whisk or electric mixer
- Measuring cups and spoons
- 9-inch springform pan
- Saucepan
Importance of Each Tool
- Food processor: Saves time by quickly blending the shortbread crust ingredients into crumbs.
- Electric mixer: Whips cream and cream cheese efficiently, ensuring light and fluffy textures in your mousse.
- Springform pan: Allows easy removal of the cake while maintaining its shape for a beautiful presentation.
Ingredients
For the Shortbread Crust:
- 1 1/2 cups all-purpose flour
- 1/2 cup powdered sugar
- 1/2 cup unsalted butter, cold and cubed
- Pinch of salt
For the Lemon Blueberry Mousse:
- 1 cup heavy cream
- 1/2 cup granulated sugar
- Zest of 2 lemons
- 1/2 cup fresh lemon juice
- 1 tablespoon gelatin powder
- 2 tablespoons water
- 8 ounces cream cheese, softened
For the Blueberry Compote:
- 2 cups fresh blueberries
- 1/4 cup granulated sugar
- 1 tablespoon fresh lemon juice
How to Make Lemon Blueberry Shortbread Mousse Cake
Step 1: Prepare the Shortbread Crust
- Combine the all-purpose flour, powdered sugar, unsalted butter, and a pinch of salt in a food processor. Pulse until the mixture resembles coarse crumbs.
- Press the mixture evenly into the bottom of a prepared springform pan.
- Bake for 15-18 minutes or until lightly golden. Allow it to cool completely.
Step 2: Make the Lemon Mousse
- Heat lemon juice over low heat in a saucepan until warm.
- Stir in bloomed gelatin (soaked in water) until dissolved. Allow this mixture to cool to room temperature.
- In a mixing bowl, beat heavy cream with granulated sugar and lemon zest until stiff peaks form.
- In another bowl, whip cream cheese until smooth. Gradually add the cooled lemon juice mixture while continuing to beat until fully smooth.
- Gently fold in the whipped cream until well incorporated.
Step 3: Assemble the Cake
- Pour the lemon mousse over the cooled shortbread crust in the springform pan.
- Refrigerate for at least 4 hours or until set.
Step 4: Prepare Blueberry Compote (Optional)
- In a saucepan over medium heat, combine fresh blueberries with granulated sugar and lemon juice.
- Cook gently until berries burst and mixture thickens slightly (about 5-7 minutes). Allow to cool before serving.
Step 5: Serve
- Before serving, run a knife around the edge of the pan to loosen the cake.
- Carefully remove sides from springform pan, slice, and serve chilled with blueberry compote if desired.
Enjoy every bite of your delicious Lemon Blueberry Shortbread Mousse Cake, perfect for any occasion!
How to Serve Lemon Blueberry Shortbread Mousse Cake
This Lemon Blueberry Shortbread Mousse Cake is not only delicious but also visually appealing. Serving it in creative ways can elevate your dessert experience. Here are some delightful serving suggestions to impress your guests or enhance your personal treat.
Individual Portions
- You can serve the mousse cake in small individual cups for a charming presentation. This makes it easier for guests to enjoy and adds an elegant touch.
With Fresh Berries
- Garnish each slice with fresh blueberries and lemon zest. This adds color and enhances the flavor, making each bite even more refreshing.
Drizzled with Blueberry Sauce
- Consider drizzling a homemade blueberry sauce over the cake before serving. The extra layer of sweetness complements the mousse beautifully.
Topped with Whipped Cream
- A dollop of freshly whipped cream on top of each slice adds richness. It balances the tartness of the lemon mousse perfectly.
Accompanied by Lemon Sorbet
- Serve alongside a scoop of lemon sorbet for a refreshing contrast. It’s a great way to cleanse the palate between bites.

How to Perfect Lemon Blueberry Shortbread Mousse Cake
To ensure that your Lemon Blueberry Shortbread Mousse Cake turns out perfectly every time, follow these helpful tips that will enhance both flavor and presentation.
- Chill properly: Refrigerate the cake for at least 4 hours to allow it to set fully. This ensures a firm texture that holds its shape when sliced.
- Use fresh ingredients: Opt for fresh lemons and blueberries for maximum flavor. Fresh ingredients elevate the taste and overall quality of the dessert.
- Don’t overmix: When folding in whipped cream, be gentle to maintain lightness. Overmixing can deflate the mousse, leading to a denser texture.
- Pre-bake crust correctly: Ensure the shortbread crust is lightly golden before adding the mousse layer. A well-baked crust gives a great foundation and prevents sogginess.
- Experiment with toppings: Feel free to add other fruits or edible flowers as garnishes for visual appeal. Creativity in presentation can make a simple dessert extraordinary.
- Serve chilled: The cake tastes best when served cold, enhancing its creamy texture and refreshing flavor profile.
Best Side Dishes for Lemon Blueberry Shortbread Mousse Cake
Pairing your Lemon Blueberry Shortbread Mousse Cake with complementary side dishes can create a well-rounded dessert experience. Here are some delightful options to consider.
-
Minted Fruit Salad
A mix of seasonal fruits tossed with fresh mint leaves creates a refreshing contrast that pairs nicely with the rich cake. -
Lemon Zest Cookies
Light lemon cookies add an extra citrusy kick while providing a crunchy texture that contrasts well with the mousse. -
Vanilla Ice Cream
Classic vanilla ice cream offers a creamy balance to the tartness of the cake, making each bite more indulgent. -
Coconut Macaroons
Chewy coconut macaroons provide delightful sweetness and texture that complements the flavors of lemon and blueberry beautifully. -
Panna Cotta
A smooth panna cotta flavored with vanilla or lemon enhances elegance while being light enough not to overshadow the main dessert. -
Almond Biscotti
Crunchy almond biscotti can add a nutty flavor element while offering great dipping opportunities into coffee or tea post-dessert enjoyment. -
Cheese Platter
A selection of soft cheeses such as brie or goat cheese with crackers creates an interesting savory contrast after indulging in sweet flavors. -
Herbal Tea
Pairing your dessert with herbal tea like chamomile or mint provides a soothing finish and helps digest all those delicious flavors!
Common Mistakes to Avoid
When making the Lemon Blueberry Shortbread Mousse Cake, it’s easy to overlook a few details. Here are some common mistakes to avoid for the best results.
- Skipping the cooling step: Not allowing the shortbread crust to cool completely can lead to a soggy base. Make sure to let it sit until it reaches room temperature before adding the mousse.
- Overmixing the whipped cream: Whipping the cream too much can turn it into butter instead of keeping it airy. Stop mixing as soon as you achieve stiff peaks.
- Using warm lemon juice: Adding warm lemon juice directly to the gelatin can cause clumping. Always dissolve gelatin in warm lemon juice and let it cool first.
- Not measuring ingredients accurately: Baking is a science, and improper measurements can affect texture and flavor. Use a kitchen scale or measuring cups for precision.
- Skipping refrigeration time: Patience is key! Failing to refrigerate the cake long enough may result in a runny mousse. Refrigerate for at least 4 hours, or overnight if possible.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Lemon Blueberry Shortbread Mousse Cake in an airtight container.
- It can be kept in the refrigerator for up to 3 days for optimal freshness.
Freezing Lemon Blueberry Shortbread Mousse Cake
- You can freeze individual slices wrapped tightly in plastic wrap and then in aluminum foil.
- The cake will last up to 2 months in the freezer. Thaw overnight in the fridge before serving.
Reheating Lemon Blueberry Shortbread Mousse Cake
- Oven: Preheat your oven to 350°F (175°C) and warm slices for about 10-15 minutes.
- Microwave: Heat individual slices on medium power for 15-20 seconds until just warmed.
- Stovetop: Place slices in a skillet over low heat, covering with a lid. Heat gently until warmed through.
Frequently Asked Questions
If you have questions about this delightful dessert, you’re not alone! Here are some common queries regarding the Lemon Blueberry Shortbread Mousse Cake.
Can I use frozen blueberries for this recipe?
Yes, you can use frozen blueberries! Just make sure to thaw and drain them before using them in your compote.
How do I customize the Lemon Blueberry Shortbread Mousse Cake?
You can add other fruits like strawberries or raspberries, or even mix in flavors like vanilla or almond extract for a unique twist.
What should I serve with Lemon Blueberry Shortbread Mousse Cake?
This cake pairs wonderfully with fresh whipped cream, a scoop of vanilla ice cream, or even a drizzle of chocolate sauce for added indulgence.
Can I make this cake ahead of time?
Absolutely! This cake is perfect for making ahead of time as it needs several hours of refrigeration to set properly.
Final Thoughts
The Lemon Blueberry Shortbread Mousse Cake is not only delicious but also versatile enough for any occasion. Its refreshing flavors make it perfect for summer gatherings or cozy family dinners. Feel free to customize it with your favorite fruits or toppings, ensuring every bite is uniquely yours!

Lemon Blueberry Shortbread Mousse Cake
- Total Time: 50 minutes
- Yield: Approximately 8 servings 1x
Description
Lemon Blueberry Shortbread Mousse Cake is a vibrant and refreshing dessert that combines the tartness of zesty lemon mousse with the sweetness of luscious blueberry compote, all resting on a buttery shortbread crust. This delightful layered cake is perfect for summer gatherings, birthdays, or cozy family dinners, impressing guests with its stunning presentation and delightful flavor. Easy to prepare with straightforward steps, this mousse cake can be made ahead of time, allowing you to enjoy the moment without the stress of last-minute baking. Whether served chilled on its own or adorned with fresh berries and whipped cream, each bite promises a heavenly experience.
Ingredients
- 1 1/2 cups all-purpose flour
- 1/2 cup powdered sugar
- 1/2 cup unsalted butter (cold and cubed)
- 1 cup heavy cream
- 8 ounces cream cheese (softened)
- Zest and juice of 2 lemons
- 2 cups fresh blueberries
- Granulated sugar (various amounts for different components)
Instructions
- Preheat your oven to 350°F (175°C). In a food processor, blend flour, powdered sugar, cold butter, and salt until crumbly. Press into a springform pan and bake for 15-18 minutes until lightly golden. Let cool.
- For the lemon mousse: Warm lemon juice in a saucepan; stir in bloomed gelatin until dissolved. Cool. Whip heavy cream with sugar and lemon zest until stiff; beat softened cream cheese until smooth. Fold in whipped cream gently.
- Assemble: Pour lemon mousse over the cooled crust in springform pan. Refrigerate for at least 4 hours or until set.
- Prepare blueberry compote: Cook blueberries with sugar and lemon juice in a saucepan until thickened; cool before serving.
- Serve chilled; garnish as desired.
- Prep Time: 30 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 320
- Sugar: 22g
- Sodium: 150mg
- Fat: 21g
- Saturated Fat: 12g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 60mg
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