Raspberry Mousse Cake is creamy with layers of buttery shortbread, lemon curd, raspberry mousse and topped with sweet mint sugar.

Raspberry Mousse Cake

Raspberry Mousse Cake

This Raspberry Mousse Cake is very easy to make, yet it looks elegant and fancy. The bright colors will add a pop of color to any dessert table, and while this is a brighter-citrusy recipe, it can be made and enjoyed year around. The flavor combo is a classic that will be enjoyed by everyone. Let’s skip the chocolate for today and give this scrumptious lemon raspberry mousse cake a chance, since its glorious!Let me walk you thru all the layers of deliciousness in this lemon bar raspberry mousse cake.

First, the bottom layer melts in your mouth because it’s buttery shortbread, topped with a citrusy and fragrant meyer lemon curd. The top layer is a soft, light and creamy raspberry mousse. The cake is garnished with crumbs of mint sugar that add such a nice finishing touch. My only recommendation for this lemon bar raspberry mousse cake is that you better double the lemon layer. I tried to have a nice balance between flavors, but if you love lemon you can make that layer so much thicker, it will be delicious.Beast Raspberry Mousse Cake

Why You’ll Love This Raspberry Mousse Cake:

  • Firstly, it is puffy, pretty and delicious, and is a show stopper dessert.
  • Also, the color combination make this cake stand out.
  • In addition, it’s easy to find ingredients and minimum prep work is needed.
  • It’s fruity and refreshing dessert, and can be topped with various fruits or flavors.
  • Perfect for special events or occasions, like Valentine’s Day.
  • Lastly, it can be made 1 day in advance, so you don’t have to worry about a last minute dessert.
Raspberry Mousse Cake

Do you need gelatin for Mousse?

Traditionally, mousse and mousse cakes are made with gelatin. If you want to substitute the gelatin, you can use agar agar, and it should be handled in the same way.

How to make lemon zest

Follow the easy steps below:

  • Rinse the lemon.
  • Set your tool over a cutting board. A microplane produces a very fine zest, perfect for baking and cooking. If you don’t have a microplane, use the smallest holes on an ordinary grater.
  • Grate the yellow skin of the lemon only. Grate just enough to get through the yellow skin, this way you can avoid the bitter white pith underneath.
  • Rotate the lemon and repeat. Once the white pith is exposed, rotate the lemon and zest the next strip of peel. Repeat until most of the peel is removed, or until you have enough zest for your recipe.

How Long Will Raspberry Mousse Cake Stay Fresh?

The Raspberry Mousse cake can be stored wrapped in plastic wrap at room temperature for about 3-4 days.


  • Freezing is possible for up to 2 months. Since the mousse contains gelatin and some sugar it will not freeze completely solid.
  • To thaw the mousses cake, overnight in the fridge and consume within 24 hours. You may also be able to serve the mousse almost frozen, as an iced fruit mousse.
Raspberry Mousse Cake

Raspberry Mousse Cake

Raspberry Mousse Cake is creamy with layers of buttery shortbread, lemon curd, raspberry mousse and topped with sweet mint sugar.


Shortbread Crust:
  • 2 cups all-purpose flour
  • 1/2 cup confectioners’ sugar
  • 2 sticks cold butter
  • 1/2 teaspoon sea salt
  • nonstick baking spray for greasing the pan
Lemon Filling:
  • 1 1/4 cups granulated sugar
  • 1/4 cup all-purpose flour
  • 4 eggs
  • 1 zest lemon
  • 2/3 cup freshly squeezed lemon juice I used 4 Meyer lemons
Raspberry Mousse:
  • 3 tablespoons fresh lemon juice
  • 2 1/4 teaspoons powdered gelatin
  • 2 cups fresh raspberries
  • 1/2 cup sugar plus 3 tablespoons
  • 2 cups cold heavy cream
Mint Sugar:
  • 1/4 cup fresh mint leaves
  • 1 tablespoon sugar


Shortbread Crust:
  1. Preheat oven to 350.
  2. In a large bowl combine the confectioners’ sugar, flour and sea salt. Cut the cold butter into cubes and add it to the flour mixture. Using your fingers work the mixture until it resembles cornmeal and the butter is completely combined with the flour. Press into a greased springform cake pan and bake for 20 minutes, or until golden.
Lemon Filling:
  1. In the bowl of an electric mixer fitted with the wire attachment add sugar, flour and the eggs one at a time. Whisk on low speed until just combined. Add the zest and the lemon juice, mix until everything is combined.
  2. Pour the lemon filling over the hot crust and return to oven. Bake for another 20-25 minutes. The lemon filling must be settled and it shouldn't jiggle.
  3. When done, remove from oven and cool completely at room temperature IN THE PAN (do not remove the lemon bars from the pan) before topping with the mousse.
Raspberry Mousse:
  1. In a small bowl, place lemon juice and sprinkle with gelatin, let sit until gelatin softens about 2 - 3 minutes. Using a food processor or blender, puree the raspberries until smooth. Pour the raspberry puree through a fine-mesh sieve, pressing on solids and discarding the solids. You should have approximately 1 cup of raspberry puree.
  2. In a small sauce pan, over medium heat add the raspberry puree and 1/2 cup of sugar, stir and cook just until you see bubbles forming at the edge.
  3. Add gelatin mixture to the raspberry sauce and continue cooking, stirring constantly until the gelatin dissolves, about 1 - 2 minutes. Whisk if needed, to ensure gelatin dissolved. Remove the mixture from heat and let cool to room temperature, about 30-40 minutes.
  4. Add cream and remaining 2 tablespoons of sugar to the bowl of an electric mixer fitted with the wire attachment, beat on medium-high speed until firm peaks form, about 3 minutes.
  5. Using a rubber spatula, gently fold in the raspberry puree mixture and gently stir until all combined. Pour over the lemon bar cake, smooth the top and refrigerate for at least 3-4 hours (better overnight) before serving.
Mint Sugar:
  1. Combine mint leaves and sugar in a food processor and pulse until the leaves are finely chopped. Sprinkle over the cake.
  1. Before removing the cake from the pan, run a sharp knife thru cold water and run it over the edges of the cake.
Calories: 251, Fat: 2g, Cholesterol: 54mg, Sodium: 121mg, Potassium: 129mg, Carbohydrates: 55g, Fiber: 2g, Sugar: 36g, Protein: 4g, Vitamin A: 3.4%, Vitamin C: 14.8%, Calcium: 4.5%, Iron: 11.4%

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