Lemon Blueberry Shortbread Mousse Cake
This Lemon Blueberry Shortbread Mousse Cake is a delightful dessert perfect for any occasion. Whether you are hosting a summer gathering, celebrating a special event, or simply treating yourself, this cake impresses with its zesty lemon mousse and sweet blueberry compote. The buttery shortbread crust adds richness, making each bite an unforgettable experience. Your taste buds will thank you!
Why You’ll Love This Recipe
- Refreshing Flavor: The combination of lemon and blueberry creates a vibrant taste that is both zesty and sweet.
- Impressive Presentation: This cake looks stunning on the table, making it a great centerpiece for any dessert spread.
- Easy to Make: With straightforward steps, this recipe is accessible even for beginner bakers.
- Versatile Dessert: Perfect for summer parties, birthdays, or just a cozy night in with friends.
- No-Bake Option: The mousse sets in the fridge, so there’s no need for baking after the initial crust.
Tools and Preparation
Having the right tools makes preparing your Lemon Blueberry Shortbread Mousse Cake easier and more enjoyable. Here’s what you’ll need:
Essential Tools and Equipment
- Food processor
- Mixing bowls
- Whisk or electric mixer
- Measuring cups and spoons
- 9-inch springform pan
Importance of Each Tool
- Food processor: Quickly combines dough ingredients for the shortbread crust, saving time and effort.
- Mixing bowls: Essential for keeping your ingredients organized while mixing different components of the cake.
- Electric mixer: Helps achieve stiff peaks in whipped cream effortlessly, ensuring a light and airy mousse.
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 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 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 lemon juice mixture while continuing to beat until smooth.
- Fold in the whipped cream until fully incorporated.
Step 3: Assemble and Chill
- Pour the lemon mousse over the cooled shortbread crust.
- Refrigerate for at least 4 hours or until set.
Step 4: Serve
- Before serving, run a knife around the edge of the pan to loosen the cake.
- Carefully remove the sides, slice, and serve chilled with blueberry compote on top.
Enjoy every piece of this Lemon Blueberry Shortbread Mousse Cake, as each bite offers a blissful treat that’s sure to please!
How to Serve Lemon Blueberry Shortbread Mousse Cake
Serving your Lemon Blueberry Shortbread Mousse Cake can elevate your dessert experience. Here are some delightful suggestions to make the presentation and enjoyment of this cake even better.
Pair with Fresh Berries
- Fresh strawberries, raspberries, or additional blueberries add a burst of color and flavor.
Add Whipped Cream
- A dollop of freshly whipped cream enhances the creamy texture and complements the tartness of the lemon mousse.
Drizzle with Blueberry Sauce
- Pouring a homemade blueberry sauce over each slice adds an extra layer of sweetness and visual appeal.
Garnish with Mint Leaves
- A few fresh mint leaves not only look beautiful but also provide a refreshing contrast to the rich flavors of the cake.
Serve with Ice Cream
- A scoop of vanilla or lemon sorbet can create a delightful temperature contrast and enhance the overall dessert experience.

How to Perfect Lemon Blueberry Shortbread Mousse Cake
To ensure your Lemon Blueberry Shortbread Mousse Cake turns out perfectly, consider these helpful tips.
- Use cold ingredients: Ensure that your butter and cream are cold for a flaky shortbread crust and stable mousse.
- Bloom gelatin properly: Mix gelatin with water before adding it to warm liquids to ensure it dissolves completely without lumps.
- Whip cream until stiff peaks: This is crucial for achieving a light and airy mousse texture that holds its shape.
- Chill adequately: Allow the cake to set in the refrigerator for at least four hours to ensure proper firmness before serving.
- Use fresh lemons: Fresh lemon juice and zest provide better flavor than bottled alternatives, enhancing the overall taste of your cake.
- Be gentle when folding: Carefully fold the whipped cream into the cheese mixture to keep air in and maintain fluffiness.
Best Side Dishes for Lemon Blueberry Shortbread Mousse Cake
Complementing your dessert with side dishes can enhance the meal. Here are some great options to serve alongside your Lemon Blueberry Shortbread Mousse Cake.
- Fruit Salad: A mix of seasonal fruits provides a refreshing contrast to the richness of the cake.
- Cheese Platter: A selection of mild cheeses pairs beautifully with sweet desserts, offering balance in flavors.
- Lemon Sorbet: This light, citrusy treat can cleanse the palate after enjoying your mousse cake.
- Chocolate Covered Strawberries: The sweetness of chocolate combined with fresh strawberries creates a decadent pairing.
- Vanilla Ice Cream: A classic choice that enhances any dessert with its creamy texture and simple flavor.
- Pistachio Cookies: These nutty cookies offer a crunchy texture that nicely contrasts with the smooth mousse cake.
Common Mistakes to Avoid
Making the Lemon Blueberry Shortbread Mousse Cake can be a delightful experience, but avoid these common mistakes for the best results.
- Skipping the chilling time: Not allowing the mousse to set properly will lead to a runny texture. Always refrigerate for at least 4 hours before serving.
- Overmixing the whipped cream: Whipping too much can result in a grainy texture. Stop when you see stiff peaks for a smooth mousse.
- Ignoring ingredient temperature: Using cold ingredients can affect the mixing process. Ensure cream cheese is softened and other ingredients are at room temperature.
- Not measuring accurately: Improper measurements can disrupt the balance of flavors. Use precise measuring tools for success.
- Using stale ingredients: Old or expired ingredients can ruin your cake’s flavor. Always check the freshness of your items before starting.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The cake stays fresh for up to 3 days in the refrigerator.
Freezing Lemon Blueberry Shortbread Mousse Cake
- Wrap individual slices tightly in plastic wrap, then place them in a freezer-safe container.
- The cake can be frozen for up to 2 months without losing flavor.
Reheating Lemon Blueberry Shortbread Mousse Cake
- Oven: Preheat to 350°F (175°C) and warm for about 10 minutes. This method helps maintain its texture.
- Microwave: Heat on low power in short intervals (10-15 seconds) until just warmed through.
- Stovetop: Place on a non-stick pan over low heat for a few minutes, watching closely to avoid melting.
Frequently Asked Questions
Here are some common questions about making the Lemon Blueberry Shortbread Mousse Cake.
Can I use frozen blueberries for this cake?
Yes, you can use frozen blueberries! Just thaw them and drain excess liquid before using them in your mousse.
How do I prevent my shortbread crust from getting soggy?
To keep the crust firm, make sure it’s baked until golden brown and let it cool completely before adding the mousse layer.
What variations can I try with this Lemon Blueberry Shortbread Mousse Cake?
You can add other berries like raspberries or strawberries, or even mix in some crushed cookies into the crust for added flavor!
How should I serve Lemon Blueberry Shortbread Mousse Cake?
Serve chilled, garnished with extra blueberries or a sprinkle of lemon zest for an elegant touch.
Final Thoughts
This Lemon Blueberry Shortbread Mousse Cake is not only refreshing but also versatile enough to fit any occasion. Its balance of zesty lemon and sweet blueberry flavors will surely impress your guests or treat yourself. Feel free to customize it with different fruits or toppings for your perfect dessert experience!

Lemon Blueberry Shortbread Mousse Cake
- Total Time: 38 minutes
- Yield: Serves approximately 10 slices 1x
Description
Lemon Blueberry Shortbread Mousse Cake is a refreshing dessert that perfectly balances zesty lemon and sweet blueberry flavors. This delightful no-bake treat features a buttery shortbread crust topped with a fluffy lemon mousse and vibrant blueberry compote. Whether you’re hosting a summer gathering or simply indulging yourself, this cake is sure to impress with its stunning presentation and rich taste. Easy to make and versatile for any occasion, it invites everyone to savor each creamy bite. Elevate your dessert game with this light, fruity treat that’s perfect for warm weather.
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 the oven to 350°F (175°C). In a food processor, combine flour, powdered sugar, butter, and salt until crumbly. Press into a greased 9-inch springform pan and bake for 15–18 minutes until golden. Cool completely.
- In a saucepan, warm lemon juice and dissolve gelatin in it. Let cool. Whip cream with sugar and lemon zest until stiff peaks form.
- Beat cream cheese until smooth; add the cooled lemon mixture gradually while mixing. Gently fold in the whipped cream.
- Pour the mousse over the cooled crust and refrigerate for at least four hours or until set.
- Serve chilled with blueberry compote on top.
- Prep Time: 20 minutes
- Cook Time: 18 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 330
- Sugar: 22g
- Sodium: 150mg
- Fat: 23g
- Saturated Fat: 14g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 70mg