Lemon Blueberry Shortbread Mousse Cake
This Lemon Blueberry Shortbread Mousse Cake is not just a dessert; it’s an experience! Perfect for gatherings, celebrations, or a special treat for yourself, this cake combines the zestiness of lemon with the sweetness of blueberry, all atop a buttery shortbread crust. Its unique layers and flavors make it an impressive centerpiece that will leave everyone craving more.
Why You’ll Love This Recipe
- Delicious Flavor Combination – The zesty lemon mousse paired with sweet blueberry compote creates a balance of refreshing and rich flavors.
- Visually Stunning – The vibrant colors of the lemon and blueberries make this cake an eye-catching dessert that’s perfect for any occasion.
- Simple to Prepare – With straightforward instructions, even novice bakers can create this delightful cake without stress.
- Perfect for Any Occasion – Whether you’re hosting a summer party or celebrating a birthday, this dessert is versatile enough to shine on any table.
- Chilled Delight – Served cold, this mousse cake is incredibly refreshing, making it a great choice for warm weather gatherings.
Tools and Preparation
To prepare your Lemon Blueberry Shortbread Mousse Cake efficiently, having the right tools is essential. These items will help you achieve the best results.
Essential Tools and Equipment
- Food processor
- Mixing bowls
- Whisk or electric mixer
- 9-inch springform pan
- Saucepan
Importance of Each Tool
- Food processor – This tool makes quick work of mixing the shortbread crust ingredients to achieve the perfect crumb texture.
- Electric mixer – An electric mixer helps achieve stiff peaks in the whipped cream quickly and effortlessly, ensuring a light mousse.
- Springform pan – Using a springform pan allows for easy removal of the cake without damaging its delicate structure.
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:
- 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
For the Blueberry Compote:
- 8 ounces cream cheese, softened
- 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 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 the bloomed gelatin (prepared by mixing with water) until dissolved. Let this mixture 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 while continuing to beat until combined.
- Fold in the whipped cream gently until fully incorporated.
Step 3: Assemble and Chill
- 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 until berries begin to burst and release their juices; remove from heat and let cool.
Step 5: Serve Your Cake
- Before serving, run a knife around the edge of the pan to loosen it.
- Carefully remove the sides of the springform pan.
- Slice into pieces and serve chilled with blueberry compote on top if desired.
Treat yourself and your loved ones to this delightful Lemon Blueberry Shortbread Mousse Cake!
How to Serve Lemon Blueberry Shortbread Mousse Cake
Serving your Lemon Blueberry Shortbread Mousse Cake can enhance the overall experience. This cake pairs wonderfully with various accompaniments that complement its refreshing flavors and rich textures.
With Fresh Berries
- Serve with a mix of fresh blueberries, raspberries, and strawberries for a burst of flavor.
- Drizzle some honey over the berries for added sweetness.
Topped with Whipped Cream
- Add a dollop of freshly whipped cream on top for extra creaminess.
- Consider infusing the whipped cream with vanilla or lemon zest for a flavor boost.
Accompanied by Lemon Sorbet
- Pair slices of cake with a scoop of lemon sorbet to elevate the citrus notes.
- The cold sorbet balances the richness of the mousse cake perfectly.
With Mint Leaves
- Garnish each slice with fresh mint leaves to add color and freshness.
- The mint enhances the dessert’s appeal and adds a hint of coolness.
Served on a Dessert Platter
- Present individual slices on a decorative platter with assorted desserts.
- This makes for an eye-catching centerpiece at any gathering.

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 your butter and cream are cold for a flakier shortbread crust.
- Bloom gelatin properly: Mix gelatin with water and let it sit before adding it to your lemon juice mixture for smooth incorporation.
- Don’t overmix: Be gentle when folding in whipped cream to maintain its lightness in the mousse.
- Chill thoroughly: Allow the cake to set in the fridge for at least 4 hours to achieve the perfect texture.
- Choose ripe berries: Use fresh, ripe blueberries for the best flavor in your compote.
- Customize flavors: Experiment with different fruit purees or zests to make this dessert uniquely yours.
Best Side Dishes for Lemon Blueberry Shortbread Mousse Cake
Pairing side dishes with your Lemon Blueberry Shortbread Mousse Cake can create a delightful dining experience. Here are some suggestions:
-
Fresh Fruit Salad
A medley of seasonal fruits adds freshness and balances the dessert’s richness. -
Coconut Macaroons
These sweet bites provide a chewy texture that contrasts nicely with the mousse cake. -
Cheese Platter
A selection of soft cheeses like brie or goat cheese complements the fruity flavors well. -
Chocolate Covered Strawberries
The sweetness of chocolate pairs beautifully with zesty lemon notes in the cake. -
Pistachio Cookies
Nutty cookies offer a crunchy contrast, enhancing each bite’s enjoyment. -
Iced Tea or Lemonade
Refreshing beverages like iced tea or lemonade keep things light and refreshing alongside dessert.
Common Mistakes to Avoid
When making the Lemon Blueberry Shortbread Mousse Cake, avoiding common pitfalls can enhance your results. Here are some mistakes to watch out for:
- Using warm butter: Ensure your butter is cold and cubed. This helps achieve a crumbly texture for the shortbread crust.
- Overmixing the mousse: Mix the whipped cream too much can cause it to deflate. Fold gently until just combined for a light texture.
- Skipping the chilling time: Patience is key! Allow the cake to chill for at least 4 hours to set properly and develop flavors.
- Using bottled lemon juice: Fresh lemon juice delivers a brighter flavor. Always opt for fresh lemons for the best taste.
- Not measuring ingredients accurately: Baking requires precision. Use proper measuring cups and spoons to ensure correct proportions.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3 days.
- Keep the cake chilled to maintain its texture and flavor.
Freezing Lemon Blueberry Shortbread Mousse Cake
- Wrap well in plastic wrap and store in a freezer-safe container.
- It can be frozen for up to 2 months. Thaw overnight in the fridge before serving.
Reheating Lemon Blueberry Shortbread Mousse Cake
- Oven: Preheat to 350°F (175°C) and heat for about 10 minutes directly from frozen or chilled.
- Microwave: Heat individual slices on medium power for about 15-20 seconds. Be careful not to overheat.
- Stovetop: Slightly warm over low heat in a skillet, ensuring it doesn’t melt or lose structure.
Frequently Asked Questions
Here are some frequently asked questions about the Lemon Blueberry Shortbread Mousse Cake.
Can I use frozen blueberries for this cake?
Yes, you can use frozen blueberries. Just make sure they’re thawed and drained before using them in the compote.
How do I know when the mousse is ready?
The mousse is ready when it holds stiff peaks after beating, indicating it has enough air incorporated for a light texture.
Can I customize this Lemon Blueberry Shortbread Mousse Cake?
Absolutely! You can add other berries like strawberries or raspberries, or even swap out lemon for lime if you prefer a different citrus flavor.
What should I serve with this dessert?
This cake pairs wonderfully with whipped cream or a scoop of vanilla ice cream for added richness.
Final Thoughts
The Lemon Blueberry Shortbread Mousse Cake is not just a delightful dessert; it’s also versatile enough for any occasion. With its zesty lemon flavors and sweet blueberry notes, it’s bound to impress your guests or satisfy your own cravings. Feel free to experiment with different berry combinations or add toppings like nuts or chocolate shavings!
Lemon Blueberry Shortbread Mousse Cake
- Total Time: 48 minutes
- Yield: Serves approximately 12 people 1x
Description
Indulge in the light and refreshing experience of Lemon Blueberry Shortbread Mousse Cake. This elegant dessert features a buttery shortbread crust layered with a zesty lemon mousse and topped with sweet blueberry compote. Perfect for any occasion, this cake is visually stunning and offers a delightful balance of flavors that will impress your guests or make for a special treat just for you. With simple preparation steps, even novice bakers can master this show-stopping dessert. Serve it chilled for an extra refreshing touch during warm weather gatherings.
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
- 1/2 cup granulated sugar
- Zest of 2 lemons
- 1/2 cup fresh lemon juice
- 8 ounces cream cheese, softened
- 2 cups fresh blueberries
Instructions
- Preheat oven to 350°F (175°C). In a food processor, combine flour, powdered sugar, butter, and salt. Pulse until crumbly. Press into a springform pan and bake for 15-18 minutes until golden. Let cool.
- For the mousse, heat lemon juice in a saucepan and dissolve bloomed gelatin in it. Cool to room temperature. Whip heavy cream with sugar and lemon zest until stiff peaks form. Beat cream cheese smooth; add the cooled lemon mixture, then fold in whipped cream gently.
- Pour the mousse over the cooled shortbread crust and refrigerate for at least 4 hours to set.
- Prepare blueberry compote by simmering blueberries with sugar and lemon juice until berries burst. Cool before serving atop the cake.
- Prep Time: 30 minutes
- Cook Time: 18 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (110g)
- Calories: 290
- Sugar: 20g
- Sodium: 180mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 50mg







