Lemon Mousse Shortbread Crumble

Featured in: Easy Baking Comfort

This dessert features a light lemon mousse, gently whipped and layered over a buttery shortbread crumble. The mousse combines fresh lemon juice and zest with whipped cream and egg whites for a smooth, airy texture. The crumble offers a crisp, golden base with a delightful buttery flavor. After assembling in glasses, the dessert chills to meld flavors and set perfectly. Garnished with fresh berries and mint, it's an elegant yet effortless treat for any occasion. Ideal for springtime enjoyment or whenever a light citrus dessert is desired.

Updated on Fri, 13 Mar 2026 09:26:36 GMT
Bright lemon mousse cups with buttery shortbread crumble, garnished with fresh berries and mint for a refreshing spring dessert. Pin It
Bright lemon mousse cups with buttery shortbread crumble, garnished with fresh berries and mint for a refreshing spring dessert. | sabortighri.com

Enjoy the bright, tangy flavors of spring with these delightful Lemon Mousse Cups layered over a buttery shortbread crumble. This elegant dessert combines a light, zesty mousse with a crisp base, making it perfect for any occasion where freshness and simplicity are key.

Bright lemon mousse cups with buttery shortbread crumble, garnished with fresh berries and mint for a refreshing spring dessert. Pin It
Bright lemon mousse cups with buttery shortbread crumble, garnished with fresh berries and mint for a refreshing spring dessert. | sabortighri.com

This dessert not only impresses with its vibrant taste but also with its beautiful presentation. Whether you serve it at a dinner party or enjoy it as a treat on a sunny afternoon, these lemon mousse cups are sure to brighten up any occasion.

Ingredients

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  • Shortbread Crumble
    1 cup (130 g) all-purpose flour
    1/4 cup (50 g) granulated sugar
    1/2 cup (115 g) unsalted butter, cold and cubed
    Pinch of salt
  • Lemon Mousse
    3 large eggs, separated
    1/2 cup (100 g) granulated sugar
    1/3 cup (80 ml) freshly squeezed lemon juice (about 2 lemons)
    2 teaspoons finely grated lemon zest
    1/2 cup (120 ml) heavy cream, chilled
    1/4 teaspoon cream of tartar (optional, for stability)
  • Garnish (optional)
    Fresh berries
    Lemon zest curls
    Mint leaves

Instructions

1. Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. Make the Shortbread Crumble:
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. Spread evenly on the prepared baking sheet.
3. Bake the crumble for 12–15 minutes, stirring halfway, until golden brown. Cool completely.
4. Prepare the Lemon Mousse:
In a medium heatproof bowl, whisk together egg yolks, 1/4 cup (50 g) sugar, lemon juice, and lemon zest. Place the bowl over a pot of simmering water (double boiler) and whisk constantly until thickened (about 7 minutes). Remove from heat and cool to room temperature.
5. In a clean bowl, beat egg whites (with cream of tartar, if using) until soft peaks form. Gradually add remaining 1/4 cup (50 g) sugar and beat until stiff peaks form.
6. In a separate bowl, whip the chilled cream to soft peaks.
7. Gently fold the whipped cream into the cooled lemon mixture. Then fold in the egg whites until just combined and smooth.
8. Assemble:
Spoon a generous layer of shortbread crumble into the bottom of 6 small serving glasses or ramekins. Top with lemon mousse. Chill for at least 2 hours before serving.
9. Garnish each cup with berries, lemon zest curls, and mint if desired.

Zusatztipps für die Zubereitung

Ensure the butter is cold when making the shortbread crumble to achieve the perfect crumbly texture. When whisking the egg yolks over the double boiler, keep stirring continuously to prevent curdling and to develop a smooth mousse base. For the lightest texture, gently fold the whipped cream and egg whites without overmixing.

Varianten und Anpassungen

For a gluten-free version, substitute the flour with a gluten-free blend. Add toasted chopped almonds or pistachios to the crumble for extra crunch and nuttiness. You can also experiment with different citrus zests like lime or orange for subtle variations.

Serviervorschläge

Serve chilled in individual glasses or ramekins for an elegant presentation. Garnish with fresh berries, lemon zest curls, and mint leaves to add color and freshness. Pair this dessert beautifully with a glass of chilled Moscato or Prosecco.

Elegant lemon mousse layered over golden shortbread crumble, perfect for a light and zesty dessert presentation. Pin It
Elegant lemon mousse layered over golden shortbread crumble, perfect for a light and zesty dessert presentation. | sabortighri.com

This vibrant lemon mousse cup recipe is a true celebration of simple ingredients elevated by technique and thoughtful presentation. Whether for a holiday, special event, or a refreshing everyday treat, these cups will bring a bright, creamy burst of sunshine to your table.

Recipe FAQs

How do I achieve the perfect mousse texture?

Whip the egg whites to stiff peaks and fold gently into the lemon mixture along with whipped cream to maintain a light, airy texture.

Can I make the shortbread crumble gluten-free?

Yes, substitute the all-purpose flour with a gluten-free blend to suit dietary needs without compromising texture.

What is the best way to zest lemons for this dessert?

Use a fine microplane grater to finely grate just the yellow outer layer, avoiding the bitter white pith underneath.

How long should the dessert chill before serving?

Chill the assembled dessert for at least 2 hours to allow the mousse to set and flavors to meld perfectly.

What garnishes complement this lemon mousse layer?

Fresh berries, lemon zest curls, and mint leaves enhance both the visual appeal and the bright citrus flavor.

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Lemon Mousse Shortbread Crumble

Zesty lemon mousse paired with buttery shortbread crumble for a light, refreshing spring dessert.

Prep Time
25 minutes
Time to Cook
15 minutes
Entire Time
40 minutes
Author Nicole Wagner


Skill Level Medium

Cuisine European

Portions 6 Number of Servings

Diet Information Meat-Free

Ingredient List

Shortbread Crumble

01 1 cup (130 g) all-purpose flour
02 1/4 cup (50 g) granulated sugar
03 1/2 cup (115 g) unsalted butter, cold and cubed
04 Pinch of salt

Lemon Mousse

01 3 large eggs, separated
02 1/2 cup (100 g) granulated sugar
03 1/3 cup (2.7 fl oz) freshly squeezed lemon juice, approximately 2 lemons
04 2 teaspoons finely grated lemon zest
05 1/2 cup (4 fl oz) heavy cream, chilled
06 1/4 teaspoon cream of tartar

Garnish

01 Fresh berries
02 Lemon zest curls
03 Mint leaves

How to Make It

Step 01

Prepare Oven and Equipment: Preheat oven to 350°F. Line a baking sheet with parchment paper.

Step 02

Create Shortbread Crumble Mixture: In a mixing bowl, combine flour, sugar, salt, and cold butter cubes. Rub mixture between your fingertips or use a pastry cutter until texture resembles coarse breadcrumbs.

Step 03

Bake Shortbread Crumble: Spread mixture evenly on prepared baking sheet. Bake for 12 to 15 minutes, stirring halfway through cooking time, until golden brown. Remove from oven and allow to cool completely.

Step 04

Prepare Lemon Curd Base: In a heatproof bowl, whisk together egg yolks, 1/4 cup sugar, lemon juice, and lemon zest. Position bowl over a pot of simmering water, creating a double boiler. Whisk constantly for approximately 7 minutes until mixture thickens. Remove from heat and cool to room temperature.

Step 05

Whip Egg Whites: In a clean mixing bowl, beat egg whites with cream of tartar using an electric mixer until soft peaks form. Gradually add remaining 1/4 cup sugar while beating until stiff peaks form.

Step 06

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

Step 07

Fold Mousse Components: Gently fold whipped cream into cooled lemon mixture using a rubber spatula. Then fold in egg whites until just combined and smooth, taking care to preserve airiness.

Step 08

Assemble Dessert Cups: Spoon generous layer of cooled shortbread crumble into bottom of 6 serving glasses or ramekins. Top with lemon mousse, dividing evenly among servings.

Step 09

Chill and Garnish: Refrigerate assembled cups for minimum 2 hours before serving. Top each cup with fresh berries, lemon zest curls, and mint leaves immediately before presentation.

Tools Needed

  • Mixing bowls (minimum 3)
  • Electric mixer or whisk
  • Baking sheet with parchment paper
  • Heatproof bowl for double boiler setup
  • Rubber spatula
  • Individual ramekins or small serving glasses

Allergy Details

Go through each item for possible allergens—and seek medical advice for any questions.
  • Contains dairy: butter and heavy cream
  • Contains eggs
  • Contains wheat gluten
  • Potential cross-contamination with tree nuts depending on ingredient sourcing and preparation environment

Nutrition Info (per portion)

These values are for general reference and not a substitute for professional health input.
  • Calorie Count: 320
  • Fats: 21 grams
  • Carbohydrates: 32 grams
  • Proteins: 5 grams

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