
Raspberry pistachio mousse cakes are the dessert I make when I want something that impresses but feels light at the end of a meal. Pistachios and fresh raspberries bring that perfect blend of nutty richness and tart fruit to every creamy bite. With a just sweet enough nutty base, lush pistachio mousse, bright raspberry compote, and airy mousse topping, each layer shines on its own while coming together for a showstopper treat.
I first made it for a spring birthday and even my dad who usually skips dessert went back for seconds. The bright raspberry and toasty pistachio flavors made it one for the books.
Ingredients
- Pistachios: Roasted and unsalted for the best flavor and color look for bright green
- Almond flour: Creates a tender base be sure it is finely ground for best texture
- Sugar: Necessary to balance the nut flavors and help each mousse set
- Melted butter: Brings richness to the cake base use good quality butter
- Egg: Binds the base and helps it hold together
- Vanilla extract: Rounds out all the flavors real vanilla makes a difference
- Heavy cream: The key to a rich and airy mousse cold cream whips best
- Gelatin powder: Helps each mousse layer set with a delicate final texture use unflavored gelatin for best results
- Raspberries: Look for fresh and fragrant berries or use frozen in the off season
- Lemon juice: Lifts the raspberry flavor with tang
- Cornstarch: Thickens the compote so it sits as a neat layer
Step-by-Step Instructions
- Make the Cake Base:
- Mix the Ingredients Combine ground pistachios almond flour sugar melted butter egg and vanilla extract in a medium bowl. Stir firmly until everything is evenly mixed. The mixture will look moist but crumbly. This forms a tender nutty base for your cakes.
- Shape and Bake the Base:
- Preheat your oven to 350 F or 175 C. Press the mixture firmly into the bottoms of your molds or ramekins making an even compressed layer. Bake this for 12 to 15 minutes until the surface is golden and edges just begin to pull away from the mold. Let these bases cool completely so they don't melt the mousse.
- Prepare the Pistachio Mousse:
- Bloom the Gelatin Sprinkle gelatin powder over the cold water in a small bowl. Let it stand for about 5 minutes until it has fully absorbed and looks thick and wobbly. This step helps the mousse set softly later on.
- Blend and Heat the Pistachio Mix:
- Blend pistachios with cream sugar and vanilla until as smooth as possible then gently heat the mixture so it's just warm. Melt the bloomed gelatin until liquid then stir it quickly into the pistachio cream until fully blended.
- Whip and Fold Cream:
- Whip more heavy cream until soft peaks form. Gently fold this whipped cream into the cooled pistachio mixture. Work in three gentle additions to keep the mousse airy and light green. Spoon or pipe this pistachio mousse over your cool cake bases then chill at least 30 minutes to set.
- Prepare the Raspberry Compote:
- Cook Down the Raspberries Place raspberries sugar and lemon juice in a small pan over medium heat. Stir regularly and simmer until the fruit softens and releases juices about five minutes. Dissolve cornstarch with water to make a slurry then stir this into the berries. Cook until thick and glossy two more minutes.
- Cool and Spread Compote:
- Once thickened cool the compote to room temperature. Spread a neat layer on top of each pistachio mousse base. This creates a tart refreshing contrast in the final cake.
- Prepare the Raspberry Mousse:
- Bloom Gelatin for the Mousse Repeat the gelatin blooming process combining powder and cold water in a bowl. Let it stand for five minutes. Mix Raspberry Puree with Gelatin Warm the strained raspberry puree just until it's hot but not boiling then stir in the softened gelatin until dissolved. Let this cool slightly so it does not melt the whipped cream. Whip and Fold into Cream Whip cream with sugar and vanilla until it holds soft peaks. Fold in the raspberry puree with careful broad strokes so the color stays bright and the mousse remains fluffy.
- Assemble the Cakes and Chill:
- Pipe or spoon the raspberry mousse over the raspberry compote. Smooth the tops and chill for at least four hours or overnight for the neatest slices. Garnish just before serving.

These mousse cakes keep well chilled in the fridge for up to three days. Store them in an airtight container to prevent the mousse from picking up fridge odors. Leftovers also freeze surprisingly well just wrap each cake tightly and thaw overnight in the fridge before serving for best texture.
Ingredient Substitutions
No almond flour Just grind extra pistachios or use hazelnut flour for a different nuance. Fresh berries can be swapped for frozen just gently thaw and drain any excess juice first so your compote doesn't get watery. If you can't find pistachios try using toasted walnuts or cashews for a similar creamy effect in the mousse layer.
Serving Suggestions
Serve these individually or stack them for a tiered centerpiece. A dollop of barely sweetened whipped cream and a sprinkle of chopped pistachios makes a perfect garnish. They also go beautifully with a scoop of lemon sorbet or drizzle of extra raspberry coulis for those who love it tart.
A Slice of Tradition
Layered mousse cakes are a French patisserie classic. Pistachios and raspberries are both staples in Mediterranean sweets blending creamy nuts and tart fruit in countless pastries and tarts. Making this at home feels like bringing a bit of that dessert shop magic to your own table with flavors that never go out of style.

Make these vibrant cakes for your next gathering and watch them disappear every time — the color alone sparks delight and the flavors make them unforgettable.
Recipe Q&A
- → How do I keep pistachio mousse creamy and smooth?
Blend pistachios thoroughly with cream and fold gently into whipped cream. Make sure gelatin is fully dissolved before mixing in to avoid lumps.
- → Can I substitute almonds for pistachios in the base?
Yes, almonds or even hazelnuts can be used, though using pistachios yields the most authentic flavor for this dessert.
- → Do I need to strain the raspberry puree?
Straining the puree removes seeds for a smoother mousse; this results in a finer, silkier texture in the finished cakes.
- → Can I use frozen raspberries for the compote and mousse?
Frozen raspberries work perfectly and are often more consistent in flavor and color, just thaw before using.
- → How long should I chill mousse cakes before serving?
Chill for at least 4 hours or overnight for best texture and definition between the layers.