Lemon mousse shortbread crumble (Printable)

A light lemon mousse paired with buttery shortbread crumble, perfect for an elegant spring dessert.

# What You'll Need:

→ Shortbread Crumble

01 - 1 cup all-purpose flour
02 - 1/4 cup granulated sugar
03 - 1/2 cup unsalted butter, cold and cubed
04 - Pinch of salt

→ Lemon Mousse

05 - 3 large eggs, separated
06 - 1/2 cup granulated sugar
07 - 1/3 cup freshly squeezed lemon juice
08 - 2 teaspoons finely grated lemon zest
09 - 1/2 cup heavy cream, chilled
10 - 1/4 teaspoon cream of tartar

→ Garnish

11 - Fresh berries
12 - Lemon zest curls
13 - Mint leaves

# Directions:

01 - Preheat the oven to 350°F. Line a baking sheet with parchment paper.
02 - In a bowl, combine flour, sugar, salt, and cold butter. Rub together with your fingertips or use a pastry cutter until mixture resembles coarse crumbs.
03 - Spread crumble mixture evenly on the prepared baking sheet. Bake for 12 to 15 minutes, stirring halfway through, until golden brown. Cool completely.
04 - In a medium heatproof bowl, whisk together egg yolks, 1/4 cup sugar, lemon juice, and lemon zest. Place the bowl over a pot of simmering water and whisk constantly until thickened, approximately 7 minutes. Remove from heat and cool to room temperature.
05 - In a clean bowl, beat egg whites with cream of tartar until soft peaks form. Gradually add remaining 1/4 cup sugar and beat until stiff peaks form.
06 - In a separate bowl, whip the chilled heavy cream to soft peaks.
07 - Gently fold the whipped cream into the cooled lemon mixture. Then fold in the egg whites until just combined and smooth.
08 - Spoon a generous layer of cooled shortbread crumble into the bottom of 6 small serving glasses or ramekins. Top with lemon mousse. Chill for at least 2 hours before serving.
09 - Top each cup with fresh berries, lemon zest curls, and mint leaves if desired.

# Expert Tips:

01 -
  • The contrast between crunchy shortbread and smooth mousse creates pure textural joy in every spoonful.
  • It looks restaurant-worthy but comes together in under an hour, making you feel like a pastry chef without the stress.
  • Lemon is bright and uplifting—perfect when you need a little cheerfulness on a plate.
02 -
  • Never skip cooling the lemon curd to room temperature before folding in the egg whites—hot curd will deflate your fluffy whites instantly.
  • The shortbread crumble must be completely cool before you layer it, otherwise it'll soften and lose that satisfying crunch that makes this dessert special.
03 -
  • Always use the freshest lemons you can find—squeeze them yourself right before you cook, because their flavor fades quickly once cut.
  • If you're nervous about the double boiler method, use a heat-safe bowl nested over a pot of simmering water, making sure the bowl doesn't touch the water directly.
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