Lemon Mousse Shortbread Cups

Featured in: Breads & Sweet Bakes

This dessert features a smooth, tangy lemon mousse served in individual cups, accompanied by rich, crumbly shortbread on the side. Freshly squeezed lemon juice and zest ensure the mousse is vibrant and refreshing, while cold heavy cream and soft egg whites yield a delicate texture. The shortbread offers a buttery, melt-in-your-mouth contrast that perfectly complements the zesty mousse. Garnish with berries, lemon curls, and mint for added elegance. Chill the mousse for at least an hour to set before serving, making this sweet treat ideal for spring gatherings or special occasions.

Updated on Thu, 19 Mar 2026 13:59:13 GMT
Bright lemon mousse cups topped with fresh berries and lemon zest, served with buttery shortbread cookies for a refreshing dessert.  Save to Pinterest
Bright lemon mousse cups topped with fresh berries and lemon zest, served with buttery shortbread cookies for a refreshing dessert. | sonicskillet.com

Bright and zesty, these Lemon Mousse Cups with Shortbread are the perfect way to celebrate spring. The mousse is light and creamy, bursting with fresh lemon flavor, while the buttery shortbread cookies add a delightful crispness to each bite. Served in individual cups, this dessert combines elegance with simplicity, making it ideal for gatherings or a refreshing treat any time you want to brighten your day.

Bright lemon mousse cups topped with fresh berries and lemon zest, served with buttery shortbread cookies for a refreshing dessert.  Save to Pinterest
Bright lemon mousse cups topped with fresh berries and lemon zest, served with buttery shortbread cookies for a refreshing dessert. | sonicskillet.com

This dessert takes a bit of patience, especially with chilling time, but the results are well worth it. The mousse is made using a classic double boiler technique to gently thicken the lemon custard before folding in whipped cream and egg whites for a light, airy texture. Baking the shortbread from scratch adds that homemade charm that elevates this recipe above store-bought alternatives.

Ingredients

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  • For the Lemon Mousse
    3 large eggs, separated
    2/3 cup (130 g) granulated sugar
    1/2 cup (120 ml) freshly squeezed lemon juice (about 2 lemons)
    1 tablespoon lemon zest
    1 cup (240 ml) heavy cream, cold
    1/2 teaspoon pure vanilla extract
    Pinch of salt
  • For the Shortbread
    1 cup (225 g) unsalted butter, room temperature
    2/3 cup (85 g) powdered sugar
    2 cups (250 g) all-purpose flour
    1/4 teaspoon salt
    1 teaspoon vanilla extract
  • Garnish
    Fresh berries (optional)
    Lemon zest curls (optional)
    Mint leaves (optional)

Instructions

1. Prepare the Shortbread:
a. Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
b. In a large bowl, cream together butter and powdered sugar until light and fluffy.
c. Mix in vanilla extract.
d. Add flour and salt, mixing until just combined.
e. Press dough into a 1/2-inch thick rectangle and cut into small rounds or rectangles.
f. Place on prepared sheet and bake for 12–15 minutes, until edges are barely golden. Cool completely.
2. Make the Lemon Mousse:
a. In a heatproof bowl, whisk egg yolks, 1/2 cup sugar, lemon juice, and lemon zest.
b. Set bowl over a pot of simmering water (double boiler). Whisk constantly until thickened and pale (about 5–7 minutes).
c. Remove from heat and cool to room temperature.
d. In a separate bowl, beat heavy cream with vanilla until soft peaks form.
e. In another clean bowl, beat egg whites with a pinch of salt until soft peaks form, then gradually add remaining sugar and beat until stiff peaks form.
f. Gently fold whipped cream into cooled lemon mixture, then fold in egg whites until fully incorporated.
3. Assemble the Cups:
a. Spoon mousse into individual serving cups or glasses.
b. Chill at least 1 hour until set.
4. Serve:
a. Garnish each cup with berries, lemon zest curls, and mint if desired.
b. Serve with shortbread cookies on the side.

Zusatztipps für die Zubereitung

For best results, ensure all ingredients are chilled as directed, especially the heavy cream for whipping. Use fresh lemons for the brightest flavor, and handle the folding gently to maintain the mousse's airy texture. Allow enough chilling time to let the mousse fully set for clean, elegant servings.

Varianten und Anpassungen

For an added twist, incorporate a splash of limoncello into the mousse before folding in the whipped cream. Gluten-free flour can replace all-purpose flour in the shortbread to accommodate dietary needs. This dessert can be prepared a day ahead, with mousse assembled and chilled, and shortbread baked in advance.

Serviervorschläge

Serve these lemon mousse cups chilled, garnished with fresh berries, delicate lemon zest curls, and sprigs of mint for a stunning presentation. Pair with the crisp shortbread cookies on the side to offer a delightful range of textures and flavors that will impress your guests.

Elegant lemon mousse in individual cups, garnished with mint leaves and paired with crisp shortbread cookies for a perfect treat.  Save to Pinterest
Elegant lemon mousse in individual cups, garnished with mint leaves and paired with crisp shortbread cookies for a perfect treat. | sonicskillet.com

This Lemon Mousse Cups with Shortbread recipe is a bright, elegant dessert that brings a refreshing finish to any meal. With its balance of creamy, tangy mousse and tender, buttery cookies, it's sure to become a favorite for spring and beyond. Enjoy the vibrant flavors and charming presentation that make this dessert an irresistible treat.

Recipe Questions

How can I achieve a fluffy lemon mousse texture?

Carefully fold whipped cream and beaten egg whites into the cooled lemon base. Avoid overmixing to keep the mousse light and airy.

Can I prepare the mousse and shortbread in advance?

Yes, both components can be made a day ahead. Chill the mousse and store shortbread in an airtight container.

What is the best way to garnish each cup?

Top with fresh berries, lemon zest curls, and mint leaves to add color, freshness, and a hint of fragrance.

Is it possible to make this gluten-free?

Absolutely. Use certified gluten-free flour in place of standard flour for the shortbread to suit dietary needs.

Why use a double boiler for the mousse?

The gentle heat of a double boiler thickens the lemon mixture without scrambling the eggs, resulting in a smooth texture.

What tools are essential for this dessert?

You will need an electric mixer, mixing bowls, a double boiler or saucepan, baking sheet, parchment, and zester.

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Lemon Mousse Shortbread Cups

Tangy lemon mousse in cups with buttery shortbread cookies, perfect for a refreshing, elegant dessert.

Prep Duration
25 minutes
Cook Duration
15 minutes
Overall Time
40 minutes


Skill Level Medium

Cuisine Style European

Makes 6 Portions

Diet Details Meat-Free

Needed Ingredients

Lemon Mousse

01 3 large eggs, separated
02 2/3 cup granulated sugar, divided
03 1/2 cup freshly squeezed lemon juice (about 2 lemons)
04 1 tablespoon finely grated lemon zest
05 1 cup cold heavy cream
06 1/2 teaspoon pure vanilla extract
07 Pinch of salt

Shortbread

01 1 cup unsalted butter, room temperature
02 2/3 cup powdered sugar
03 2 cups all-purpose flour
04 1/4 teaspoon salt
05 1 teaspoon vanilla extract

Garnish

01 Fresh berries (optional)
02 Lemon zest curls (optional)
03 Mint leaves (optional)

Steps

Step 01

Prepare Shortbread Dough: Preheat oven to 350°F. Line a baking sheet with parchment paper. In a large bowl, cream together unsalted butter and powdered sugar until pale and fluffy. Blend in vanilla extract, then incorporate all-purpose flour and salt, mixing just until a cohesive dough forms.

Step 02

Shape and Bake Shortbread: Press dough into a 1/2-inch thick rectangle. Use a sharp cutter to portion into rounds or rectangles. Arrange on prepared baking sheet and bake 12 to 15 minutes, until edges are pale golden. Remove from oven and cool completely.

Step 03

Prepare Lemon Curd Base: In a heatproof bowl, whisk together egg yolks, 1/2 cup granulated sugar, freshly squeezed lemon juice, and lemon zest. Set bowl over a pot of gently simmering water and whisk constantly until mixture thickens and turns pale, about 5 to 7 minutes. Remove from heat and allow to cool to room temperature.

Step 04

Whip Cream and Egg Whites: In a separate bowl, whip heavy cream and vanilla extract using an electric mixer until soft peaks form. In another clean bowl, beat egg whites with a pinch of salt until soft peaks develop, then gradually add remaining sugar and continue beating until firm, glossy peaks form.

Step 05

Fold and Combine Mousse: Gently fold whipped cream into the cooled lemon mixture in batches. Carefully incorporate the beaten egg whites, folding just until mixture is homogeneous and airy.

Step 06

Assemble and Chill Mousse Cups: Spoon lemon mousse evenly into individual serving cups or glasses. Cover and refrigerate for at least 1 hour until mousse is fully set.

Step 07

Garnish and Serve: Immediately before serving, garnish each mousse cup with fresh berries, lemon zest curls, and mint leaves, if desired. Present shortbread cookies on the side.

Tools Needed

  • Electric mixer
  • Mixing bowls
  • Double boiler or heatproof bowl and saucepan
  • Baking sheet
  • Parchment paper
  • Spatula
  • Zester or microplane
  • Serving cups

Allergy Info

Double-check ingredients for allergens, and talk to a health expert if unsure.
  • Contains eggs, dairy (cream, butter), and wheat (flour). For gluten-free, use certified gluten-free flour for the cookies. Always verify labels of all ingredients.

Nutrition Details (per serving)

Nutritional info is here for reference and doesn't replace expert advice.
  • Total Calories: 410
  • Total fat: 28 g
  • Carbohydrates: 38 g
  • Proteins: 5 g

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