Decadent Eggless Chocolate Mousse Cake Recipe for Any Occasion

Eggless Chocolate Mousse Cake: an eggless chocolate cake base layered with a light chocolate mousse and finished with a silky chocolate ganache.

This is a chocolate lover’s dream and an elegant treat for any celebration.

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I’ve been wanting to share this recipe for a while, and it’s a perfect time to make it — especially with Valentine’s Day approaching. If you adore chocolate, this Eggless Chocolate Mousse Cake is a must-try.

The cake has three simple layers: a soft eggless chocolate cake base, a light and airy chocolate mousse, and a glossy chocolate ganache. Despite the three layers, the recipe is straightforward and easy to assemble.

Chocolate Cake: The base is a basic eggless chocolate cake made with pantry staples. I used the same recipe as my eggless chocolate cake, halved for this version since it only needs to serve as the base. The batter yields a moist, tender cake — a reliable no-fail recipe. For best flavor, use a good-quality cocoa powder; I prefer Anthony’s Cocoa.

Chocolate Mousse: The eggless mousse is quick to make and requires just a few ingredients. Use good-quality chocolate and consider a mix of semi-sweet and dark chocolate for balanced flavor. Melt the chocolate, let it cool to room temperature, and gently fold in whipped cream to preserve the mousse’s light texture.

Chocolate Ganache: The ganache is optional but highly recommended for extra richness. I used dark chocolate, but semi-sweet works well too. Heat heavy cream until it’s just simmering, pour it over finely chopped chocolate, let it sit briefly, then stir until smooth. Avoid boiling the cream and chop the chocolate finely so it melts evenly.

For this recipe I used a 9-inch springform pan, but if you prefer taller layers, use a 7- or 8-inch pan — the mousse and ganache will be thicker. If you choose a smaller pan, increase the baking time slightly because the batter will be deeper.

This cake is easy to make and makes a beautiful, simple dessert. I hope you try it!

Method

Chocolate Cake

Preheat the oven to 350°F (175°C). Lightly grease a 9-inch springform pan and set aside.

1. In a large bowl sift together 3/4 cup (98 g) all-purpose flour, 1/4 cup (24 g) cocoa powder, 1/2 teaspoon baking soda, and 1/8 teaspoon salt. Set aside.

2. In a measuring jar or bowl, add 1/2 tablespoon white vinegar to 1/2 cup milk. Let sit for 5–10 minutes to make a quick buttermilk. Alternatively use 1/2 cup store-bought buttermilk.

3. Add 1/2 cup granulated sugar to the milk and stir until the sugar dissolves. Add 1/4 cup oil and 1/2 teaspoon vanilla extract and mix.

4. Add the wet ingredients to the dry ingredients and mix until combined. Do not over-mix; a few streaks of flour are fine.

5. Pour the batter into the prepared pan and spread evenly. Bake at 350°F for 18–20 minutes. My cake was done at 18 minutes. Remove from the oven and let cool completely.

Chocolate Mousse

6. Place 1 cup (about 6 oz) chopped chocolate and 1.5 tablespoons unsalted butter in a bowl. Melt using a double-boiler over simmering water (bowl should not touch the water), or melt carefully in short bursts in the microwave. Allow the melted chocolate to cool to room temperature.

7. Meanwhile, whip 1 cup (8 oz/240 ml) chilled heavy cream with a splash of vanilla until it forms stiff peaks. For best results chill the bowl and whisk before whipping.

8. Fold the whipped cream into the cooled melted chocolate gently. Start by adding about one-quarter of the whipped cream, fold to loosen the chocolate, then fold in the remaining cream until smooth and airy.

9. Spread the mousse over the cooled cake with an offset spatula. Chill in the refrigerator for a minimum of 2–3 hours to set.

Chocolate Ganache

10. Place 2 oz chopped chocolate in a bowl. Heat 1/4 cup (2 oz/60 ml) heavy cream on medium-low until it just comes to a simmer. Pour the hot cream over the chocolate and let sit for 1 minute.

11. Whisk until smooth and glossy. Pour the ganache over the chilled mousse layer and refrigerate for another hour to set.

To serve, dust the top with a little cocoa powder if desired. Remove the cake from the refrigerator about 20 minutes before slicing — the mousse will have a better texture and flavor at slightly less cold temperature.

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