Raspberry Mousse Almond Sponge Cake

The first time I made this raspberry mousse cake, my kitchen smelled like a European patisserie. I had spent weeks obsessing over getting that perfect mirror glaze, watching countless videos and reading dozens of recipes. When I finally poured that glossy raspberry layer over the mousse and watched it set into something so stunning I almost didn't want to cut into it, I knew this would be my forever celebration cake.

I served this at my best friends engagement party last summer. She had requested something elegant but not too heavy, and watching her eyes light up when I brought out those perfect ruby layers was everything. The cake disappeared faster than I could snap photos, and people are still asking me for the recipe.

Ingredients

• 100 g almond flour: Almond flour creates the most tender crumb and adds that subtle nutty aroma that pairs beautifully with raspberry
• 50 g all-purpose flour: Just enough structure to hold everything together without making the sponge dense
• 100 g granulated sugar: Split between yolks and whites to sweeten and help stabilize those egg whites
• 4 large eggs, separated: Room temperature eggs separate more easily and whip up better
• 40 g unsalted butter, melted: Adds richness and helps create that fine, delicate texture
• 1 tsp vanilla extract: Pure vanilla makes everything taste more expensive
• 1/4 tsp salt: Balances the sweetness and highlights the almond flavor
• 300 g fresh or frozen raspberries: Frozen work perfectly here and are often more available year-round
• 80 g granulated sugar: Adjust based on how tart your berries are
• 2 tbsp lemon juice: Brightens the raspberry flavor and cuts through the rich cream
• 6 sheets gelatin: Sheet gelatin gives the clearest mousse, but powdered works if you bloom it properly
• 300 ml heavy cream: Cold cream whips up faster and holds air better
• 150 g raspberry purée: Strain it through a fine mesh sieve for that flawless mirror finish
• 50 g granulated sugar: Enough to sweeten without making the glaze too soft
• 2 sheets gelatin: This amount gives you glaze that sets firm but still melts beautifully on your tongue
• Fresh raspberries: The crowning glory that makes this cake show-stopping
• Mint leaves: Optional but adds such a lovely pop of color against the raspberry

Instructions

Preheat your oven to 175°C (350°F):

Grease and line a 23 cm springform pan with parchment paper, making sure to come up the sides for easy removal later

Beat the egg whites:

In a completely clean bowl, whip egg whites with half the sugar until stiff peaks form—this could take 5 to 7 minutes but creates the airy lift your sponge needs

Whisk the yolks:

In another bowl, whisk yolks with remaining sugar until pale, then beat in melted butter and vanilla until smooth

Combine the flours:

Fold almond flour, all-purpose flour, and salt into the yolk mixture until just combined

Fold in the whites:

Gently fold one third of the egg whites into the batter to lighten it, then fold in the remaining whites in two additions, being careful not to deflate them

Bake the sponge:

Pour batter into your prepared pan and bake for 20 to 25 minutes until golden and a toothpick comes out clean

Cool completely:

Let the sponge cool in the pan on a wire rack—rushing this step will make your mousse melt and slide right off

Soften the gelatin:

Place gelatin sheets in cold water for 5 minutes or bloom powdered gelatin in 3 tbsp cold water

Cook the raspberries:

Heat raspberries, sugar, and lemon juice over medium heat until berries completely break down and release their juices

Strain the purée:

Press the mixture through a fine mesh sieve, pressing firmly to extract all the liquid

Dissolve the gelatin:

Warm 3 tbsp of the raspberry purée and stir in the gelatin until completely dissolved, then mix back into the remaining purée

Whip the cream:

Beat cold heavy cream to soft peaks—you want it to hold its shape but still be slightly floppy

Make the mousse:

Fold one third of the whipped cream into the cooled raspberry purée to lighten it, then gently fold in the remaining cream

Assemble the layers:

Place your cooled almond sponge back in a cleaned springform ring and spread the raspberry mousse evenly over the top

Chill the cake:

Refrigerate for at least 2 hours until the mousse is completely set and firm to the touch

Soak more gelatin:

Place the remaining gelatin sheets in cold water for 5 minutes

Make the glaze base:

Heat raspberry purée and sugar just until warm enough to dissolve the gelatin completely

Cool the glaze:

Let the glaze cool to about 35°C (95°F)—any hotter and it will melt your mousse layer

Pour the glaze:

Gently pour the glaze over the chilled mousse layer, starting in the center and letting it flow to the edges

Final chill:

Refrigerate for at least 1 hour until the glaze is completely set and no longer tacky

Serve it up:

Release the cake from the pan, garnish with fresh raspberries and mint leaves, and slice with a sharp knife dipped in hot water

Save

This cake has become my go-to for moments that matter. Theres something about cutting into those pristine layers and seeing someone face light up that reminds me why I fell in love with baking in the first place.

Getting That Mirror Finish

The secret to a professional looking glaze is patience and temperature control. Ive learned that rushing the cooling process results in cloudy patches that no amount of garnish can hide.

Working With Gelatin

Sheet gelatin is easier to work with but powdered gelatin is more accessible. The key is blooming it properly in cold water and making sure it is fully dissolved before incorporating it into your mixtures.

Making It Ahead

This cake actually improves with a day in the refrigerator, as the flavors meld together beautifully. You can make the sponge up to two days ahead and wrap it tightly at room temperature.

• The mousse layer can be prepared and chilled a day before glazing
• Wait to add the glaze until the day you plan to serve for the freshest appearance
• Always bring the cake to room temperature for about 20 minutes before serving

Save

Every forkful of this cake feels like a celebration—the way the nutty sponge gives way to that cloud of raspberry mousse is pure magic.

Your Recipe Questions Answered

→ Can I make this dessert ahead of time?

Yes, this dessert actually improves when made ahead. You can prepare the entire creation up to 2 days in advance, storing it covered in the refrigerator. The flavors meld together beautifully, and the texture remains perfectly set.

→ What can I substitute for almond flour?

For a nut-free version, replace the almond flour with an equal amount of all-purpose flour or hazelnut flour for a different nutty flavor. The sponge will be slightly denser but still delicious and suitable for supporting the mousse layer.

→ Can I use frozen raspberries instead of fresh?

Absolutely. Frozen raspberries work wonderfully in both the mousse and glaze. Thaw them completely before pureeing, and expect slightly more liquid that may need additional reduction. For garnish, fresh berries are recommended for the best presentation.

→ Why did my mousse not set properly?

This usually happens when the gelatin isn't properly bloomed or the raspberry mixture is too hot when folded into the cream. Ensure gelatin sheets soak in cold water for at least 5 minutes, and let the raspberry puree cool to room temperature before combining with whipped cream.

→ How do I get a perfectly smooth glaze finish?

The key is pouring the glaze when it's slightly warm but not hot—around 30-35°C (86-95°F). Let it cool after dissolving the gelatin, then pour gently over the chilled mousse layer in one steady motion, avoiding any air bubbles.

→ Can I make individual portions instead of one large cake?

Certainly. Use silicone molds or ring molds lined with acetate for individual servings. Adjust the chilling time slightly—smaller portions set faster, usually requiring 1-2 hours total. This creates elegant single-serving desserts perfect for plated presentations.