Raspberry Mousse Almond Sponge

Summer in my grandmother's kitchen always meant something light and fruity for dessert, and this raspberry mousse cake brings me right back to those afternoons watching her fold whipped cream into fruit purees with such gentle precision. The first time I made this for a dinner party, I accidentally forgot to fold the gelatin mixture properly and ended up with a slightly uneven texture. Now I know better, and there's something deeply satisfying about watching that perfectly smooth mound of raspberry mousse set into something that looks like it came from a French patisserie.

I brought this to a friend's summer garden party last year, and honestly, the way people's eyes lit up when they took that first bite made every minute of folding egg whites completely worth it. Something about the combination of nutty sponge and cool, creamy raspberry just makes people slow down and really enjoy their dessert.

Ingredients

• 100 g almond flour: This is what gives the sponge its tender crumb and that subtle marzipan flavor that pairs so beautifully with raspberry
• 50 g all-purpose flour: Just enough structure to hold everything together without making the sponge heavy or dense
• 100 g granulated sugar: Split between yolks and whites, this sweetens while also helping stabilize the meringue for maximum lift
• 4 large eggs, separated: Room temperature eggs separate more easily and whip up to greater volume for that airy sponge texture
• 30 g unsalted butter, melted and cooled: Adds richness and keeps the sponge tender, but must be completely cool so it does not cook the yolks
• 1/2 tsp vanilla extract: Pure vanilla extract rounds out all the flavors and adds that classic dessert aroma we all love
• Pinch of salt: Just a tiny amount helps balance sweetness and strengthens the egg white structure
• 300 g fresh or frozen raspberries: Fresh raspberries give the brightest flavor, but frozen work perfectly when they are not in season
• 100 g granulated sugar: Adjust this slightly depending on how tart your raspberries are, but this amount balances well with the rich cream
• 2 tbsp lemon juice: Brightens the raspberry flavor and helps cut through the richness of the cream and butter
• 5 sheets leaf gelatin OR 12 g powdered gelatin: Leaf gelatin gives a cleaner finish and dissolves more evenly, but powdered works perfectly if that is what you have
• 300 ml heavy cream, cold: Very cold cream whips up faster and holds its structure better when folded with the fruit puree
• 150 g fresh raspberries: Whole fresh raspberries on top add beautiful color and a burst of fresh fruit texture
• 1 tbsp powdered sugar: A light dusting makes this look professionally finished without adding too much extra sweetness
• Mint leaves: Just a few small leaves add that pop of green and a refreshing herbal note

Instructions

Preheat your oven and prepare the pan:

Preheat to 180°C (350°F) and line the bottom of a 23 cm (9-inch) springform pan with parchment paper, greasing the sides lightly with butter

Make the almond sponge base:

Beat the egg yolks with 50 g sugar until pale and thick, then fold in melted butter and vanilla

Whip the egg whites:

In a clean bowl, whip egg whites and salt to soft peaks, then gradually add remaining sugar and continue whipping to stiff, glossy peaks

Combine the batter:

Gently fold almond flour and all-purpose flour into the yolk mixture, then fold in one-third of the egg whites before adding the rest

Bake and cool the sponge:

Pour batter into the prepared pan and bake for 18 to 20 minutes until golden and a toothpick comes out clean, then cool completely

Prepare the gelatin:

If using leaf gelatin, soak in cold water for 5 minutes, otherwise sprinkle powdered gelatin over cold water and let bloom

Make the raspberry puree:

Puree raspberries with sugar and lemon juice, then strain through a fine mesh sieve to remove all seeds

Dissolve the gelatin:

Heat one-third of the puree gently, add the squeezed gelatin (or bloomed powdered gelatin), stir until completely dissolved, then combine with remaining puree and cool to room temperature

Whip the cream:

Whip cold heavy cream to soft peaks, then gently fold the cooled raspberry mixture into the whipped cream until completely smooth

Assemble the cake:

Spread the raspberry mousse evenly over the cooled almond sponge while still in the springform pan, smooth the top, and chill for at least 4 hours until fully set

Finish and serve:

Carefully remove the cake from the pan, top with fresh raspberries, dust with powdered sugar, and garnish with mint leaves if desired

Save

This cake has become my go-to for summer birthdays because it feels special and elegant but is not overwhelmingly heavy after a big meal. Last summer my sister actually asked for this instead of a traditional birthday cake, which I think is the highest compliment a dessert can receive.

Making It Gluten-Free

I have made this with a good gluten-free flour blend several times for friends with dietary restrictions, and honestly, the texture is almost indistinguishable from the original. The almond flour already does so much heavy lifting for structure that the small amount of wheat flour is not as crucial as it might be in other cakes.

Working With Gelatin

Gelatin can seem intimidating, but once you understand that it just needs to bloom properly in cold water and dissolve completely before adding to your mixture, it becomes quite straightforward. The key is never letting the gelatin mixture boil, which can actually weaken its setting power.

Serving Suggestions

This cake is absolutely beautiful on its own, but a small glass of chilled Moscato or a dry Champagne makes the whole experience feel like a proper French dinner party finale. The bubbles and slight sweetness of the wine cut through the cream and highlight the bright raspberry flavor.

• Use a sharp knife dipped in hot water and wiped clean between slices for the cleanest cuts
• Let the cake sit at room temperature for about 10 minutes before serving to soften slightly
• Any leftovers will keep covered in the refrigerator for up to 3 days, though the texture is best on the first day

Save

There is something so rewarding about serving a dessert that looks this impressive but is actually quite straightforward to make. Every time I bring this out, people assume I spent hours in the kitchen, which is a secret I will happily keep.

Recipe FAQs

→ How long does the mousse need to set?

The raspberry mousse requires at least 4 hours in the refrigerator to fully set. For best results, chill overnight to ensure the mousse holds its shape beautifully when sliced.

→ Can I make this dessert ahead of time?

Yes, this dessert actually improves when made ahead. You can prepare it up to 2 days in advance, keeping it covered in the refrigerator. Add fresh raspberries and garnish just before serving for the best presentation.

→ What's the best way to slice this mousse cake?

Run a sharp knife under hot water, dry it thoroughly, then slice with gentle sawing motions. Wipe and warm the knife between each cut for clean, professional-looking slices.

→ Can I use frozen raspberries for the mousse?

Frozen raspberries work perfectly for the mousse layer. Thaw them completely before pureeing, and expect slightly more liquid that you'll need to strain out. Fresh berries are recommended for the topping.

→ How do I know when the sponge is fully baked?

The almond sponge is done when it's golden brown and springs back when gently pressed. A toothpick inserted in the center should come out clean or with just a few moist crumbs.

→ Can I substitute the almond flour?

You can replace almond flour with hazelnut flour for similar results, or use all-purpose flour for a more neutral sponge. However, almond flour provides the best texture and subtle nutty flavor intended for this dessert.