Lemon Blueberry Shortbread Mousse Cake (Printable)

Buttery crust layered with tangy lemon mousse and luscious blueberry compote creates this stunning creamy dessert.

# 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

# Method:

01 - Preheat oven to 350°F. Line an 8-inch springform pan with parchment paper.
02 - 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.
03 - Bake crust for 20–25 minutes, or until golden and set. Allow to cool completely.
04 - 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.
05 - In a small bowl, sprinkle gelatin over 2 tablespoons water; let bloom for 5 minutes.
06 - In a small saucepan, combine lemon juice and gelatin mixture. Heat gently, stirring, until gelatin dissolves. Cool to room temperature.
07 - In a large bowl, beat cream cheese with 1/2 cup granulated sugar and lemon zest 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 rest of the compote on top.
11 - Refrigerate for at least 4 hours, or until set.
12 - Serve chilled, garnished with additional fresh berries or whipped cream if desired.

# Expert Advice:

01 -
  • The combination of buttery shortbread, bright lemon, and sweet blueberries hits every perfect flavor note in one bite
  • Make it ahead and let it chill while you focus on everything else
  • The stunning swirled pattern looks like you spent hours on it
02 -
  • The crust must be completely cool before adding the mousse or the layers will melt and slide
  • Room temperature gelatin mixture prevents it from seizing when you add it to the cream cheese
  • Gentle folding keeps the whipped cream fluffy and prevents the mousse from becoming dense
03 -
  • Room temperature ingredients combine more smoothly and prevent lumps in your mousse
  • The springform pan makes this elegant dessert surprisingly easy to serve
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