Lemon Blueberry Shortbread Mousse (Print Version)

Buttery shortbread layered with tangy lemon mousse and sweet blueberry compote creates this stunning dessert perfect for any celebration.

# Components:

→ 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

05 - 1 cup heavy cream
06 - 1/2 cup granulated sugar
07 - Zest of 2 lemons
08 - 1/2 cup fresh lemon juice
09 - 1 tablespoon gelatin powder
10 - 2 tablespoons water
11 - 8 ounces cream cheese, softened

→ Blueberry Compote

12 - 2 cups fresh blueberries
13 - 1/4 cup granulated sugar
14 - 1 tablespoon fresh lemon juice

# Directions:

01 - Preheat oven to 350°F. Line an 8-inch springform pan with parchment paper.
02 - Combine flour, powdered sugar, cold cubed butter, and salt in a food processor. Pulse until mixture resembles coarse crumbs. Press firmly into the bottom of the prepared pan.
03 - Bake for 20 to 25 minutes until golden and set. Allow to cool completely before proceeding.
04 - Combine blueberries, 1/4 cup sugar, and 1 tablespoon lemon juice in a saucepan over medium heat. Cook, stirring occasionally, until berries burst and mixture thickens, approximately 8 to 10 minutes. Let cool completely.
05 - Sprinkle gelatin powder over 2 tablespoons water in a small bowl and let bloom for 5 minutes.
06 - Combine lemon juice and gelatin mixture in a small saucepan. Heat gently over low heat, stirring constantly, until gelatin fully dissolves. Cool to room temperature.
07 - Beat softened cream cheese with 1/2 cup granulated sugar and lemon zest in a large bowl until smooth and creamy.
08 - In a separate bowl, whip heavy cream until stiff peaks form.
09 - Gradually beat the cooled gelatin-lemon mixture into the cream cheese mixture until smooth. Gently fold in the whipped cream until fully incorporated.
10 - 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 remaining compote on top.
11 - Refrigerate for at least 4 hours or until fully set.
12 - Remove from refrigerator and serve chilled. Garnish with additional fresh berries or whipped cream if desired.

# Expert Advice:

01 -
  • It looks like you spent hours in the kitchen, but it's actually broken into manageable chunks you can do days apart.
  • That perfect balance of tart, creamy, and buttery hits different—it's refreshing without being heavy, impressive without being fussy.
02 -
  • If your mousse looks broken or separated after adding the gelatin, your gelatin mixture was either too hot or you added it too quickly; next time, let it cool completely and add it in small amounts while beating.
  • The compote needs to be completely cool before you layer it into the mousse or it'll melt everything into a puddle—this was a hard-earned lesson.
03 -
  • Use a hot, wet knife to slice between each cut—it prevents the mousse from dragging and gives you clean, beautiful slices every time.
  • If you don't have a springform pan, a regular 8-inch cake pan works too; just chill it completely and gently run a warm knife around the edges before turning it out onto a plate.
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