Lemon Blueberry Shortbread Mousse Cake
This Lemon Blueberry Shortbread Mousse Cake is a delightful treat that brings a burst of fresh flavors to any occasion. Whether you’re hosting a summer gathering, celebrating a special event, or simply indulging in a sweet craving, this cake will impress your guests and satisfy your taste buds. With its creamy lemon mousse layered over a buttery shortbread crust and topped with sweet blueberry compote, this dessert is not only visually stunning but also incredibly delicious.
Why You’ll Love This Recipe
- Refreshing Flavor: The combination of zesty lemon and sweet blueberries creates a perfect balance, making every bite refreshing.
- Easy to Make: Despite its impressive appearance, this cake comes together easily with simple ingredients and straightforward steps.
- Versatile Dessert: Perfect for summer picnics, birthday parties, or cozy family dinners, this cake fits any occasion beautifully.
Tools and Preparation
Before you start making your Lemon Blueberry Shortbread Mousse Cake, gather the essential tools. Having the right equipment will make the process smoother and more enjoyable.
Essential Tools and Equipment
- Food processor
- Mixing bowls
- Whisk
- Baking pan
- Saucepan
Importance of Each Tool
- Food processor: Helps combine the shortbread crust ingredients quickly for a smooth texture.
- Mixing bowls: Necessary for separating the components of the mousse and crust while preparing your cake.
- Whisk: Ideal for beating cream and mixing ingredients to achieve light and fluffy textures.
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 Mousse Layer:
- 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 the prepared 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 the bloomed gelatin until dissolved. Allow this mixture to cool to room temperature.
- In a mixing bowl, beat heavy cream, granulated sugar, and lemon zest until stiff peaks form.
- In another bowl, whip cream cheese until smooth.
- Gradually add the cooled lemon juice mixture into cream cheese while continuing to beat until smooth.
- Fold in the whipped cream until fully incorporated.
Step 3: Assemble the Cake
- Pour the lemon mousse over the cooled shortbread crust in the pan.
- Refrigerate for at least 4 hours or until set.
Step 4: Prepare Blueberry Compote
- In a small saucepan, combine fresh blueberries with granulated sugar and fresh lemon juice over medium heat.
- Cook until berries soften and release their juices (about 5-7 minutes). Remove from heat and let cool.
Step 5: Serve Your Cake
- Before serving, run a knife around the edge of the pan to loosen the cake.
- Carefully remove sides of pan; slice into portions.
- Top each slice with blueberry compote before serving chilled.
Enjoy your homemade Lemon Blueberry Shortbread Mousse Cake!
How to Serve Lemon Blueberry Shortbread Mousse Cake
Serving your Lemon Blueberry Shortbread Mousse Cake can turn a simple dessert into an elegant experience. Here are some creative ideas to enhance your presentation and impress your guests.
Individual Portions
- Use small glass jars or dessert cups to serve individual portions of the mousse cake for a charming touch.
Fresh Berries
- Garnish each slice with fresh blueberries and lemon zest for a burst of color and flavor.
Whipped Cream
- Add a dollop of whipped cream on top of each serving for extra creaminess and sweetness.
Mint Leaves
- A few sprigs of fresh mint not only add aesthetic appeal but also bring a refreshing aroma.
Chocolate Drizzle
- Drizzle some melted white or dark chocolate over each slice for a decadent finish.
Serve Chilled
- Ensure that the cake is served chilled to enhance its refreshing flavors, especially on warm days.

How to Perfect Lemon Blueberry Shortbread Mousse Cake
To achieve the best results with your Lemon Blueberry Shortbread Mousse Cake, consider these helpful tips.
- Use cold ingredients: Ensure butter and cream are cold for a flakier shortbread crust.
- Bloom gelatin properly: Dissolve gelatin in water completely for a smooth mousse texture.
- Fold gently: Incorporate whipped cream into the lemon mixture gently to maintain its lightness.
- Chill adequately: Allow enough chilling time; this helps the mousse set beautifully.
- Taste as you go: Adjust sugar levels based on your preferences—sweeten if needed!
- Presentation matters: Use a sharp knife to get clean slices that showcase the layers beautifully.
Best Side Dishes for Lemon Blueberry Shortbread Mousse Cake
Pairing side dishes with your Lemon Blueberry Shortbread Mousse Cake can elevate your dessert experience. Here are some delightful options to consider.
- Lemon Sorbet – A light and tangy sorbet complements the cake’s flavors perfectly.
- Vanilla Ice Cream – The creaminess balances the tartness of the lemon mousse.
- Fruit Salad – A mix of seasonal fruits provides freshness and texture alongside the cake.
- Pistachio Cookies – These nutty cookies offer a crunchy contrast to the smooth mousse.
- Coconut Macaroons – Chewy macaroons add sweetness and richness that pairs well with lemon.
- Cheese Platter – A selection of mild cheeses can enhance the overall tasting experience with savory notes.
Common Mistakes to Avoid
Many home bakers struggle with achieving the perfect Lemon Blueberry Shortbread Mousse Cake. Here are some common mistakes and how to avoid them.
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Skipping the Chilling Time: Not allowing the cake to chill properly can result in a runny mousse. Always refrigerate for at least 4 hours to ensure it sets well.
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Overmixing the Cream: Whipping the cream too much can lead to a grainy texture. Beat until stiff peaks form, but stop right there for a smooth finish.
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Using Warm Ingredients: Adding warm ingredients can affect the mousse’s texture. Ensure your lemon juice mixture is completely cool before combining it with the cream cheese.
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Neglecting Fresh Ingredients: Opting for old or frozen blueberries can compromise flavor. Use fresh blueberries for a sweeter taste and vibrant color.
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Ignoring Oven Temperature: Baking at the wrong temperature can impact the crust’s texture. Preheat your oven accurately and monitor baking time closely for best results.

Storage & Reheating Instructions
Refrigerator Storage
- Store the Lemon Blueberry Shortbread Mousse Cake in an airtight container.
- It will last up to 3 days in the refrigerator, retaining its freshness.
Freezing Lemon Blueberry Shortbread Mousse Cake
- Wrap slices tightly in plastic wrap or aluminum foil.
- The cake can be frozen for up to 2 months for longer storage.
Reheating Lemon Blueberry Shortbread Mousse Cake
- Oven: Preheat your oven to 350°F (175°C). Place the cake in for about 10 minutes until slightly warmed.
- Microwave: Heat individual slices on medium power for about 15-20 seconds, checking frequently to avoid overheating.
- Stovetop: Use a double boiler method, placing the cake on top of simmering water until warmed through.
Frequently Asked Questions
Here are some frequently asked questions about making Lemon Blueberry Shortbread Mousse Cake.
How do I make my Lemon Blueberry Shortbread Mousse Cake more flavorful?
You can enhance the flavor by adding extra lemon zest or using organic blueberries for a more natural sweetness.
Can I substitute any ingredients in this recipe?
Yes! You may swap out heavy cream with coconut cream for a dairy-free version. Just ensure you whip it until it’s thick enough!
How long does it take to prepare this dessert?
The total time is approximately 50 minutes, but remember that chilling is crucial, so plan ahead!
What should I serve with my Lemon Blueberry Shortbread Mousse Cake?
Consider pairing it with whipped cream or a scoop of vanilla ice cream for an extra indulgent treat.
Final Thoughts
This Lemon Blueberry Shortbread Mousse Cake is not only delightful but also versatile enough for various occasions. Whether you’re celebrating a special event or treating yourself, this dessert will impress everyone. Feel free to customize it by adding different fruits or flavors!

Lemon Blueberry Shortbread Mousse Cake
- Total Time: 38 minutes
- Yield: Serves 8
Description
Lemon Blueberry Shortbread Mousse Cake is a refreshing dessert that captivates with its vibrant flavors and stunning layers. This delightful treat features a buttery shortbread crust, a rich and creamy lemon mousse, and a luscious blueberry compote that ties everything together beautifully. Perfect for summer gatherings, birthdays, or simply indulging in a sweet craving, this cake promises to impress your guests while satisfying your taste buds. Easy to prepare with simple ingredients, it’s an elegant addition to any occasion.
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
- Pinch of salt
- 1/2 cup granulated sugar (for mousse)
- 1 tablespoon gelatin powder
- 2 tablespoons water
- 1/4 cup granulated sugar (for compote)
Instructions
- Preheat the oven to 350°F (175°C). In a food processor, blend flour, powdered sugar, butter, and salt until crumbly. Press into the bottom of a baking pan and bake for 15-18 minutes until golden. Let cool.
- For the lemon mousse, warm lemon juice in a saucepan, dissolve bloomed gelatin in it, then cool to room temperature. Whip heavy cream with sugar and zest until stiff peaks form; set aside. Blend softened cream cheese with cooled lemon juice mixture until smooth, then fold in whipped cream gently.
- Pour the mousse over the cooled crust and refrigerate for at least 4 hours to set.
- For the blueberry compote, cook blueberries with sugar and lemon juice over medium heat until they soften. Cool before serving.
- Slice the chilled cake, top with blueberry compote, and enjoy!
- Prep Time: 20 minutes
- Cook Time: 18 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (125g)
- Calories: 345
- Sugar: 22g
- Sodium: 190mg
- Fat: 22g
- Saturated Fat: 12g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 55mg