Name: Coffee Walnut Mousse Cake
Prep time: 30 min
Cook time: 20 min
Total time: 50 min
Ingredients: 2 eggs; 1/3 cup (70g) sugar; 1/4 tsp (1g) salt; 1 tsp (2g) instant coffee; 1 tsp (5g) vanilla extract; 2/3 cup (70g) roasted walnuts (, ground); 1/4 cup (30g) all-purpose flour; 1/2 cup (100g) sugar; 1 tbsp (15ml) water; 3 tbsp (45g) whipping cream; 2/3 cup (70g) walnuts (, toasted, cut into smaller pieces); 1 tbsp 15g) butter; 1/2 tsp (3g) salt; 9 oz (250g) cream cheese; 1/2 cup (60g) powdered sugar; 2 tsp (4g) instant coffee; 1/2 tsp (3g) vanilla extract; 1 ¼ cup (300ml) whipping cream; 1/2 tbsp (5g) gelatin powder; 2 tbsp (30ml) water; 3.5 oz (100g) semisweet chocolate; 3.5 oz (100g) whipping cream; coffee whipped cream; chocolate shards; toasted walnuts, chopped; instant coffee for dusting

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Get ready to dive into a world of flavor with our delightful Coffee Walnut Mousse Cake. Picture a sublime blend of rich coffee-infused walnut sponge, a rich walnut caramel filling that adds a satisfying contrast, topped with the coffee cream cheese mousse that is bringing a perfect balance of sweetness and richness to the cake.

But that’s not all, a decadent chocolate ganache sits on top of the entire creation, creating a luxurious finish that will leave you craving more.

The cake is decorated with coffee-infused whipped cream, chocolate shards, and chopped walnuts, creating a visual masterpiece that mirrors the delightful medley of flavors within.

This Coffee Walnut Mousse Cake is simply irresistible, a perfect blend of coffee and walnut magic.

How to prepare the coffee walnut mousse cake

The recipe for this mousse cake is not complicated at all, each step of the recipe is easy and quick to prepare. Start with the coffee walnut sponge cake, continue with the walnut caramel filling and the coffee mousse and in the end prepare the chocolate ganache.

How to prepare the coffee walnut sponge cake

Start by preheating the oven to 320F (160C) and greasing an 8-inch (20cm) springform pan with parchment paper. In a big bowl, mix eggs, sugar, salt, instant coffee, and vanilla extract until the mixture becomes thick, foamy, and light in color, usually for about 5 minutes.

Gently fold in flour and ground toasted walnuts, then bake for 15-20 minutes until a toothpick comes out clean from the center. Let it cool completely.

How to prepare the walnut caramel layer

For the walnut caramel layer, heat sugar and water in a saucepan until it becomes a light caramel color. Add cream (it might bubble a bit), butter, walnuts, and salt. Stir constantly for about 1 minute. Spread this walnut caramel filling over the walnut sponge cake, leaving a ½ inch (1cm) border, and refrigerate while you make the coffee mousse.

How to prepare the coffee cream cheese mousse

Start by dissolving gelatin in cold water and let it swell for 5-10 minutes. Meanwhile, mix cream cheese, powdered sugar, vanilla extract, and instant coffee until smooth. Dissolve the swollen gelatin over low heat and pour it into the cream cheese mixture. Add chilled cream and whip until soft peaks form. Pour the coffee mousse over the cake, smooth the top, cover, and refrigerate for 4-6 hours or overnight.

How to prepare the chocolate ganache topping

Make the chocolate ganache by melting chocolate and cream over low heat. Spread it evenly over the cake, then refrigerate for another 30 minutes.

Decorate with coffee whipped cream, chocolate shards, chopped walnuts, and a dusting of instant coffee.

Hope you will give this amazing Coffee Walnut Mousse Cake a try and enjoy it as much as we did. If you do, make sure to share the photos with me on Instagram.

Other coffee desserts you may like to try

This Opera Cake, an amazing French dessert features layers of almond sponge cake, coffee buttercream, and chocolate ganache, creating a perfect balance of flavors and textures.

This Chocolate Mocha Fault Line Cake consists of three layers or moist chocolate cake with cream cheese mocha filling and a bit of crunch from the crushed coffee beans and chocolate, coated in a delicious sweetened condensed milk buttercream.

Our Flourless Chocolate Cake with Coffee Mousse is a heavenly dessert, with a rich, dense, fudgy flourless chocolate cake at the base with a soft and airy coffee mousse on top.

This Classic Tiramisu is easy to make and consists of layers of ladyfingers soaked in coffee filled with a creamy mixture of mascarpone cheese, eggs, sugar, and liqueur.