Lemon Blueberry Shortbread Mousse Cake

Featured in: Desserts & Sweet Bakes

This exquisite layered dessert combines three distinct elements for maximum flavor and texture. The foundation starts with a buttery, crumbly shortbread crust baked until golden. Next comes a silky lemon mousse—light, tangy, and perfectly balanced—infused with fresh lemon zest and juice. The crowning glory is a vibrant blueberry compote, swirled throughout the creamy layers for stunning visual appeal and bursts of sweet fruitiness in every bite. After chilling until set, each slice reveals beautiful ribbons of purple against creamy yellow, making this an impressive centerpiece for gatherings.

Updated on Sat, 07 Feb 2026 08:22:00 GMT
Slices of Lemon Blueberry Shortbread Mousse Cake showcase golden shortbread, fluffy lemon mousse, and a vibrant blueberry swirl on top. Save
Slices of Lemon Blueberry Shortbread Mousse Cake showcase golden shortbread, fluffy lemon mousse, and a vibrant blueberry swirl on top. | turbobaker.com

Last July, my sister Sarah brought over blueberries she'd picked herself that morning—stained fingers and all. We stood in my kitchen eating them by the handful until she suggested we bake something special. This layered beauty happened almost by accident, with what we had on hand turning into something meant for company.

I made this for my parents' anniversary dinner last month. My dad usually skips dessert, but he went back for seconds and quietly asked for the recipe. Now it's his official birthday request, even though he pretends he only wants it so Mom doesn't have to bake.

Ingredients

  • 1 ½ cups all purpose flour: The foundation of your shortbread layer, giving it that tender crumb that melts against your tongue
  • ½ cup powdered sugar: Dissolves more easily than granulated, creating that smooth delicate texture in the crust
  • ½ cup unsalted butter, cold and cubed: Cold butter creates those gorgeous flaky pockets that make shortbread sing
  • Pinch of salt: Just enough to wake up all the other flavors without anyone knowing why
  • 1 cup heavy cream: Whipped into clouds, this is what transforms your lemon mixture into mousse magic
  • ½ cup granulated sugar: Balances the bright lemon without making it cloyingly sweet
  • Zest of 2 lemons: Those aromatic oils carry all the perfume and personality of the fruit
  • ½ cup fresh lemon juice: Provides that signature tang that cuts through the rich layers
  • 1 tablespoon gelatin powder: The secret that gives your mousse structure while keeping it silky smooth
  • 2 tablespoons water: Blooms your gelatin properly so it disappears completely into the mixture
  • 8 ounces cream cheese, softened: Adds body and tang that makes the mousse feel substantial and luxurious
  • 2 cups fresh blueberries: Use the sweetest ones you can find, they'll only get better as they cook down
  • ¼ cup granulated sugar: Just enough to coax out the juices without masking the berries' natural sweetness
  • 1 tablespoon fresh lemon juice: Brightens the compote and highlights the blueberries' floral notes

Instructions

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Prepare your canvas:
Preheat oven to 350°F and line an 8 inch springform pan with parchment paper, leaving some overhang for easy removal later.
Build the buttery base:
Pulse flour, powdered sugar, cold cubed butter, and salt in a food processor until you see coarse crumbs, then press firmly into your prepared pan.
Bake until golden:
Let the crust bake for 20 to 25 minutes until it smells like buttery happiness and turns golden around the edges.
Cool completely:
This step takes patience, but warm crusts melt mousse, so walk away and do something else for at least 30 minutes.
Cook down your berries:
Combine blueberries, ¼ cup sugar, and 1 tablespoon lemon juice in a saucepan over medium heat until berries burst and the mixture thickens.
Let the compote cool:
Set it aside to reach room temperature, stirring occasionally to release some of that trapped heat.
Bloom your gelatin:
Sprinkle gelatin over 2 tablespoons water and let it sit for 5 minutes until it looks like tiny translucent pearls.
Dissolve gently:
Heat the lemon juice with the bloomed gelatin in a small saucepan, stirring until completely dissolved, then cool to room temperature.
Make it creamy:
Beat cream cheese, ½ cup sugar, and lemon zest until smooth, then whip your heavy cream in a separate bowl until stiff peaks form.
Bring it together:
Gradually beat the cooled gelatin mixture into your cream cheese base, then fold in that whipped cream until no white streaks remain.
Layer with love:
Spread half the mousse over your crust, dollop half the compote on top and swirl gently, then repeat with remaining layers.
Chill until set:
Refrigerate for at least 4 hours, though overnight is even better for clean slices that hold their shape beautifully.
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| turbobaker.com

My neighbor Jenny swears this is the best thing to come out of my kitchen, and she's tried almost everything. Last week she showed up with empty containers and hopeful eyes before I'd even started my morning coffee.

Making It Ahead

This dessert actually improves with a day in the fridge, letting all those lemon and berry notes deepen and mingle. I've made it two days ahead and it was still absolutely perfect, which is why it's now my go to for dinner parties.

Swirl Technique Secrets

Drop your compote in small spoonfuls rather than one big puddle, then use a butter knife to make figure eights through both layers. Don't over swirl or you'll lose those gorgeous ribbons of purple running through the cream.

Serving Suggestions

A few fresh blueberries on top make it look extra special, though a small mint leaf adds this restaurant touch that nobody realizes takes zero effort. I love it with a glass of something cold and crisp while sitting on the back porch.

  • Let it sit at room temperature for 10 minutes before serving for the softest texture
  • Leftovers keep beautifully covered in the fridge for up to three days
  • The springform pan makes serving feel fancy without any complicated plating
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A close-up reveals creamy Lemon Blueberry Shortbread Mousse Cake with tangy lemon filling and juicy blueberry compote layered over buttery crust. Save
A close-up reveals creamy Lemon Blueberry Shortbread Mousse Cake with tangy lemon filling and juicy blueberry compote layered over buttery crust. | turbobaker.com

There's something about watching people take that first bite, their eyes widening at how something so pretty tastes even better than it looks. That's the magic right there.

Recipe Questions & Answers

How long does this dessert need to chill before serving?

The assembled layers require at least 4 hours in the refrigerator to fully set. For optimal results, prepare it the night before serving to ensure clean slices and firm texture throughout all layers.

Can I make this dessert ahead of time?

Absolutely. This actually tastes better when made 1-2 days ahead, allowing flavors to meld. Store covered in the refrigerator and add fresh garnishes just before serving for the best presentation.

What can I substitute for gelatin?

For vegetarian alternatives, try agar-agar powder following package instructions for equivalent gelling strength. Note that setting times may vary slightly, and texture might be slightly firmer than traditional gelatin.

Can I use frozen blueberries for the compote?

Frozen blueberries work beautifully in the compote. No need to thaw first—simply cook them as directed, though you may need 1-2 extra minutes to reach the desired thickened consistency since frozen berries release more liquid.

Why did my crust turn out hard instead of crumbly?

Hard crust usually results from overworking the dough or overbaking. Pulse just until coarse crumbs form, press gently into the pan, and watch closely during baking—remove when lightly golden, not deeply browned.

Can I make this dessert gluten-free?

Yes! Simply replace the all-purpose flour in the crust with a 1-to-1 gluten-free baking blend. The texture remains remarkably similar, and the mousse and compote layers are naturally gluten-free.

Lemon Blueberry Shortbread Mousse Cake

Buttery shortbread meets tangy lemon mousse and sweet blueberry compote in this elegant layered dessert.

Prep Time
25 minutes
Time to Cook
25 minutes
Total Duration
50 minutes
Written by Justin Reed


Skill Level Medium

Cuisine American

Amount 8 Number of Servings

Diet Info None specified

What You Need

Shortbread Crust

01 1 1/2 cups all-purpose flour
02 1/2 cup powdered sugar
03 1/2 cup unsalted butter, cold and cubed
04 Pinch of salt

Lemon Mousse

01 1 cup heavy cream
02 1/2 cup granulated sugar
03 Zest of 2 lemons
04 1/2 cup fresh lemon juice
05 1 tablespoon gelatin powder
06 2 tablespoons water
07 8 ounces cream cheese, softened

Blueberry Compote

01 2 cups fresh blueberries
02 1/4 cup granulated sugar
03 1 tablespoon fresh lemon juice

How to Cook

Step 01

Prepare the Pan: Preheat oven to 350°F. Line an 8-inch springform pan with parchment paper.

Step 02

Make Shortbread Crust: In a food processor, combine flour, powdered sugar, butter, and salt. Pulse until mixture resembles coarse crumbs. Press firmly into the bottom of the prepared pan.

Step 03

Bake the Crust: Bake crust for 20-25 minutes, or until golden and set. Allow to cool completely.

Step 04

Prepare Blueberry Compote: In a saucepan over medium heat, combine blueberries, 1/4 cup sugar, and 1 tablespoon lemon juice. Cook, stirring occasionally, until berries burst and mixture thickens, about 8-10 minutes. Let cool completely.

Step 05

Bloom Gelatin: In a small bowl, sprinkle gelatin over 2 tablespoons water; let bloom for 5 minutes.

Step 06

Dissolve Gelatin: In a small saucepan, combine lemon juice and gelatin mixture. Heat gently, stirring, until gelatin dissolves. Cool to room temperature.

Step 07

Prepare Cream Cheese Base: In a large bowl, beat cream cheese with 1/2 cup granulated sugar and lemon zest until smooth and creamy.

Step 08

Whip Heavy Cream: In a separate bowl, whip heavy cream until stiff peaks form.

Step 09

Combine Lemon Mousse: Gradually beat the cooled gelatin-lemon mixture into the cream cheese mixture until smooth. Gently fold in the whipped cream until fully incorporated.

Step 10

Assemble the Cake: Spread half the lemon mousse over the cooled crust. Spoon half the blueberry compote over the mousse and gently swirl. Top with remaining mousse and swirl the rest of the compote on top.

Step 11

Chill and Set: Refrigerate for at least 4 hours, or until set.

Step 12

Serve: Serve chilled, garnished with additional fresh berries or whipped cream if desired.

What You'll Need

  • 8-inch springform pan
  • Food processor
  • Mixing bowls
  • Hand mixer or stand mixer
  • Saucepan
  • Spatula

Allergy Details

Double-check each ingredient for possible allergens and always check with your doctor if you're unsure.
  • Contains wheat (gluten)
  • Contains dairy
  • Contains gelatin

Nutrition Details (each serving)

Nutritional info is meant to guide, but it's not medical advice.
  • Calorie Count: 280
  • Fats: 18 g
  • Carbohydrates: 30 g
  • Proteins: 3 g