Introduction

This Strawberry Mousse Cake is a delightful and airy dessert perfect for any celebration. Layers of light sponge cake are soaked in a sweet strawberry syrup and filled with a smooth, fruity mousse. It’s both elegant and refreshing, sure to impress your guests.

A round cake with a smooth pink frosting covers the top and sides, coated in a crumbly golden-yellow layer around the outside. The top is decorated with fresh red strawberries, some whole and some sliced in halves, arranged in a loose cluster near one edge. The cake sits on a white cake stand with ruffled edges. The background is a clean white marbled texture, making the colors of the cake and fruit stand out clearly. photo taken with an iphone --ar 4:5 --v 7

Ingredients

4 sponge cake layers
3/4 cup water (for syrup)
1/4 cup sugar (for syrup)
1/2 cup strawberry liqueur
1/4 cup water (for gelatin)
1 1/2 tablespoons gelatin
2 pints strawberries (plus more to garnish)
1/4 to 1/3 cup sugar (for mousse, adjust to taste)
1 1/2 cups heavy cream, chilled
5 tablespoons powdered sugar
2 teaspoons vanilla extract

Instructions

Step 1: Bake 4 layers of sponge cake and let them cool completely. Cut each cake layer in half horizontally to create thinner layers. If needed, even out the layers with a serrated knife and save any trimmed cake to make crumbs for decorating the sides of the cake.
Step 2: Make the strawberry syrup by combining 3/4 cup water, 1/4 cup sugar, and 1/2 cup strawberry liqueur in a small saucepan. Heat over medium heat until the sugar dissolves, then set aside to cool.
Step 3: Sprinkle the gelatin over 1/4 cup water and let it bloom for 5 to 10 minutes.
Step 4: Hull and cut the strawberries into halves or thirds. Pulse them in a food processor with 1/4 to 1/3 cup sugar, adjusting sweetness to your preference.
Step 5: Gently melt the bloomed gelatin in the microwave for about 20 seconds or on the stovetop; do not boil.
Step 6: In a chilled bowl, whisk the heavy cream with powdered sugar and vanilla extract until stiff peaks form.
Step 7: Fold in the pureed strawberries and melted gelatin gently until evenly combined. Refrigerate the mousse for about 10 minutes until it starts to thicken.
Step 8: Prepare your cake platter by lining it with aluminum foil. Brush each cake layer with the cooled strawberry syrup.
Step 9: Spread a generous layer of strawberry mousse on top of each cake layer and stack them. Use mousse to frost the top and sides of the assembled cake.
Step 10: Decorate with additional strawberries and press the saved cake crumbs onto the sides of the cake. Carefully remove the aluminum foil from underneath.
Step 11: Refrigerate the cake until ready to serve.

Tips & Variations

Use fresh, ripe strawberries for the best flavor in the mousse and garnishes.
If you prefer a non-alcoholic version, substitute the strawberry liqueur with additional water or strawberry syrup.
For a different flavor, try using raspberry or mixed berry puree instead of strawberries.
Chilling your mixing bowl and beaters before whipping the cream helps achieve stiffer peaks faster.

Storage

Store the cake in the refrigerator covered loosely with plastic wrap or in a cake container. It will keep fresh for up to 3 days. When ready to serve, allow the cake to sit at room temperature for 10 minutes to soften slightly. This cake is best enjoyed chilled and should not be frozen as the mousse texture may change.

How to Serve

A slice of cake with four layers of light yellow sponge and three layers of pale pink frosting between them, all covered in the same pink frosting on top and sides. Two small red strawberries cut in half with green leaves are placed on top of the cake slice. The cake sits on a white plate on a white marbled surface, with some whole strawberries blurred in the background. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use a different type of cake instead of sponge cake?

Yes, light and airy cakes like chiffon or angel food cake work well as alternatives. Avoid dense cakes, as they won’t soak up the syrup or complement the mousse texture as nicely.

How can I make the mousse firmer?

Ensure the gelatin is fully bloomed and properly melted without boiling. You can also chill the mousse longer before assembling or add a little extra gelatin if you want a firmer set, but be careful not to overdo it to keep the mousse light.