Lemon Blueberry Shortbread Mousse Cake
This Lemon Blueberry Shortbread Mousse Cake is a delightful dessert that brings a burst of flavor to any occasion. Whether it’s a summer picnic, a birthday celebration, or simply a treat for yourself, this cake stands out with its zesty lemon mousse and sweet blueberry compote, all resting on a buttery shortbread crust. With its refreshing taste and beautiful presentation, this cake will surely impress your guests and satisfy your sweet cravings.
Why You’ll Love This Recipe
- Delicious Flavor Combination: The zesty lemon and sweet blueberries create a perfect balance, making each bite refreshing and satisfying.
- Easy to Make: With simple ingredients and straightforward steps, this recipe is accessible for bakers of all skill levels.
- Versatile Dessert: This cake is ideal for various occasions, from casual gatherings to formal celebrations.
- Make Ahead Option: You can prepare the cake in advance, allowing the flavors to meld while saving you time on the day of your event.
- Beautiful Presentation: The vibrant colors and layered textures make this cake visually appealing, sure to catch everyone’s eye.
Tools and Preparation
Before you start baking your Lemon Blueberry Shortbread Mousse Cake, gather the necessary tools. Having everything ready will streamline the process and enhance your baking experience.
Essential Tools and Equipment
- Food processor
- Mixing bowls
- Whisk or electric mixer
- 9-inch springform pan
- Saucepan
- Measuring cups and spoons
Importance of Each Tool
- Food processor: This tool simplifies mixing the shortbread crust ingredients quickly and evenly.
- Whisk or electric mixer: Essential for achieving whipped cream with stiff peaks, ensuring a light mousse texture.
- Springform pan: Ideal for easily removing the cake once it has set 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 this 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 the lemon juice in a saucepan over low heat until warm.
- Stir in the bloomed gelatin powder, mixing until dissolved. Allow this mixture to cool to room temperature.
- In a mixing bowl, beat together the heavy cream, granulated sugar, and lemon zest. Beat until stiff peaks form.
- In another bowl, whip the softened cream cheese. Gradually add in the cooled lemon juice mixture while continuing to beat until smooth.
- Fold in the whipped cream gently until fully combined.
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 fully set.
Step 4: Prepare Blueberry Compote
- In a saucepan over medium heat, combine fresh blueberries with granulated sugar and lemon juice. Cook until blueberries soften and release their juices.
- Once done, allow it to cool slightly before pouring it over the chilled lemon mousse layer.
Step 5: Serve
Before serving your beautiful Lemon Blueberry Shortbread Mousse Cake, 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! Enjoy each refreshing bite!
How to Serve Lemon Blueberry Shortbread Mousse Cake
Serving your Lemon Blueberry Shortbread Mousse Cake can elevate the dessert experience and make it even more delightful. Here are some creative serving suggestions to consider for your next gathering.
Classic Presentation
- Serve chilled slices of the cake on individual plates, garnished with fresh blueberries and a sprinkle of lemon zest for an elegant touch.
With Whipped Cream
- Add a dollop of freshly whipped cream alongside each slice to enhance the creamy texture and provide extra sweetness.
Accompanied by Ice Cream
- Pair your cake with a scoop of vanilla or lemon sorbet. The cold treat complements the mousse and adds a refreshing element.
Decorative Plating
- Create a beautiful plate by drizzling blueberry sauce around the cake slice. This not only enhances flavor but also adds visual appeal.
Fruit Garnish
- Top each slice with a few whole blueberries or lemon slices for added color and freshness, making it visually stunning.
Coffee or Tea Pairing
- Serve slices alongside a cup of coffee or herbal tea, providing a warm beverage that balances the sweet flavors of the cake.

How to Perfect Lemon Blueberry Shortbread Mousse Cake
To achieve perfection with your Lemon Blueberry Shortbread Mousse Cake, follow these helpful tips for the best results.
- Use cold ingredients: Ensure that your butter and cream are cold when making the crust and mousse for better texture.
- Bloom gelatin properly: Dissolve gelatin in water first before mixing it with warm lemon juice to ensure it activates fully.
- Beat cream to stiff peaks: When whipping heavy cream, stop once you reach stiff peaks for a light and airy mousse.
- Chill adequately: Allow your cake to chill for at least 4 hours to set completely; overnight is even better!
- Run a knife around edges: Before removing the sides of the pan, gently run a knife around the edges to avoid sticking.
- Experiment with toppings: Feel free to add variations like crushed graham crackers or toasted coconut on top for added texture.
Best Side Dishes for Lemon Blueberry Shortbread Mousse Cake
Complementing your Lemon Blueberry Shortbread Mousse Cake with delicious side dishes can enhance your dessert spread. Here are some great options:
- Fresh Berry Salad: A mix of strawberries, raspberries, and blueberries tossed in honey dressing creates a refreshing contrast.
- Lemon Sorbet: A light and zesty frozen treat that cleanses the palate between bites of rich mousse cake.
- Minted Yogurt Parfait: Layers of yogurt, granola, and mint add creamy richness while balancing sweetness.
- Coconut Macaroons: Chewy coconut cookies provide texture and contrast, perfectly pairing with fruity flavors.
- Pistachio Crumble: A crunchy pistachio topping adds an earthy flavor that complements the citrus notes in the cake.
- Chocolate Covered Strawberries: These decadent treats offer a rich chocolate contrast while keeping things sweet and fruity.
- Lemon Curd Tartlets: Mini tarts filled with tangy lemon curd echo the lemon flavor in the mousse while offering a different texture.
- Herb-Infused Iced Tea: Refreshing iced tea infused with herbs like mint or basil keeps drinks light and fragrant alongside dessert.
Common Mistakes to Avoid
When making Lemon Blueberry Shortbread Mousse Cake, it’s important to steer clear of common pitfalls that can ruin your dessert. Here are some mistakes to avoid:
- Skipping the chilling time: Not allowing the cake to set properly can lead to a runny texture. Make sure to refrigerate for at least 4 hours.
- Overmixing the mousse: Overmixing can deflate the whipped cream, resulting in a dense mousse instead of a light one. Fold gently until just combined.
- Using warm ingredients: Using warm cream cheese or lemon juice can cause the mousse to curdle. Ensure all ingredients are at room temperature before mixing.
- Not measuring accurately: Incorrect measurements can throw off the balance of flavors and textures. Use measuring cups and spoons for precision.
- Neglecting the crust cooling time: Serving with a warm crust can make the mousse melt. Always let the shortbread crust cool completely before adding the mousse.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container in the fridge for up to 3 days.
- Keep separate from any toppings or garnishes until ready to serve.
Freezing Lemon Blueberry Shortbread Mousse Cake
- Wrap tightly in plastic wrap and then foil for up to 2 months.
- Thaw in the refrigerator overnight before serving.
Reheating Lemon Blueberry Shortbread Mousse Cake
- Oven: Preheat to 350°F (175°C) and heat for about 10-15 minutes, covered with foil.
- Microwave: Heat individual slices on low power for 20-30 seconds, checking frequently.
- Stovetop: Place slices on a pan over low heat, cover, and warm for about 5 minutes.
Frequently Asked Questions
Here are some common questions about making Lemon Blueberry Shortbread Mousse Cake:
What is Lemon Blueberry Shortbread Mousse Cake?
Lemon Blueberry Shortbread Mousse Cake is a layered dessert featuring a buttery shortbread crust topped with zesty lemon mousse and blueberry compote.
Can I make this cake ahead of time?
Yes! This cake can be made up to two days in advance. Just keep it refrigerated until you’re ready to serve.
How do I know when the mousse is ready?
The mousse is ready when it holds stiff peaks after whipping. Be careful not to overbeat it.
What can I substitute for fresh blueberries?
You can use frozen blueberries; just thaw and drain them well before adding them to your compote.
Final Thoughts
This Lemon Blueberry Shortbread Mousse Cake is not only delicious but also visually stunning. It’s perfect for gatherings or as a refreshing treat on a warm day. Feel free to customize by adding other fruits or adjusting sweetness levels. Give it a try; your taste buds will thank you!

Lemon Blueberry Shortbread Mousse Cake
- Total Time: 50 minutes
- Yield: Serves approximately 10 slices 1x
Description
Lemon Blueberry Shortbread Mousse Cake is a captivating dessert that combines the bright, zesty flavors of lemon with the sweetness of blueberries, all layered atop a buttery shortbread crust. This delightful treat is perfect for any occasion, from summer picnics to birthday celebrations. The light and airy lemon mousse pairs beautifully with the rich blueberry compote, creating a refreshing experience that’s both visually stunning and delicious. Easy to prepare and ideal for make-ahead gatherings, this cake will impress your guests and satisfy your sweet cravings.
Ingredients
- 1 ½ cups all-purpose flour
- ½ cup powdered sugar
- ½ cup unsalted butter (cold)
- 1 cup heavy cream
- ½ cup granulated sugar
- Zest and juice of 2 lemons
- 8 ounces cream cheese (softened)
- 2 cups fresh blueberries
Instructions
- Preheat the oven to 350°F (175°C). In a food processor, combine flour, powdered sugar, and cold butter until crumbly. Press into a greased springform pan and bake for 15–18 minutes until golden. Let cool.
- For the mousse, warm lemon juice in a saucepan; dissolve bloomed gelatin in it and let cool. Whip heavy cream with sugar and lemon zest until stiff peaks form. Beat softened cream cheese, then mix in the lemon mixture. Fold in whipped cream.
- Pour mousse over cooled crust; chill for at least 4 hours.
- For the compote, cook blueberries with sugar and lemon juice until soft. Cool slightly before topping mousse layer.
- Remove from springform pan, slice, and serve chilled.
- Prep Time: 30 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 23g
- Sodium: 120mg
- Fat: 22g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 55mg