Mini Heart Cake with Chocolate Mousse

Name: Mini Heart Cake with Chocolate Mousse
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Yield: 6 servings
Ingredients: 1 cup all-purpose flour; 1/2 cup sugar; 1/2 cup unsalted butter, softened; 1/4 cup milk; 2 large eggs; 1 teaspoon vanilla extract; 1/2 teaspoon baking powder; 1/4 teaspoon salt; 7 oz dark chocolate, chopped; 1 cup heavy cream; 2 tablespoons sugar; 1 teaspoon vanilla extract; 2 large egg whites; 1/4 teaspoon salt

Highlighted under: Baking & Desserts

I absolutely love making Mini Heart Cakes with Chocolate Mousse for special occasions! The combination of the light, fluffy mousse and the delicate cake creates a delightful treat that brings joy to any celebration. These mini cakes not only look adorable but also melt in your mouth with every bite. Each spoonful reveals layers of rich chocolate and sweet creaminess, making them perfect for impressing family and friends. I can't wait for you to try this recipe and create beautiful memories while you bake!

Created by

Maribel Hayes

Last updated on 2026-01-13T06:03:59.004Z

When we first attempted creating these Mini Heart Cakes, I was surprised at how simple yet rewarding the process was. The key is to prepare a light chocolate mousse that perfectly complements the delicate cake base. After several tries, I discovered that letting the mousse chill for just the right amount of time ensures it holds its shape inside the heart mold.

Another tip I found instrumental was using a high-quality chocolate that enhances the flavor without overpowering the sweetness. The result was not only visually stunning but also a dessert that has become a go-to for birthdays and anniversaries alike!

        Why You'll Love This Recipe
        Adorable heart-shaped design for a personal touch
Luxurious chocolate mousse that's rich yet light
Perfectly sized for sharing or indulging solo

      

Understanding the Ingredients

The choice of chocolate is crucial for achieving the desired flavor and texture in the mousse. I recommend using high-quality dark chocolate with a cocoa content of at least 70%. This will provide a rich, deep chocolate flavor that balances well with the sweetness of the cake and cream. If you prefer a slightly sweeter mouse, you can choose a milk chocolate variant, but be mindful that it will alter the overall richness.

Butter is another key ingredient that contributes to the cake's moistness and tenderness. Make sure your butter is room temperature before starting, which allows for better incorporation with the sugar. If you find yourself out of butter, you can substitute it with an equal amount of vegetable oil; however, the flavor profile will change slightly.

Perfecting the Mousse Texture

The success of chocolate mousse lies in achieving the right balance between the chocolate and the whipped cream. When whipping the heavy cream, aim for soft peaks rather than stiff peaks, as this allows the mousse to maintain a light and airy texture. If the cream is overwhipped, it can lead to a dense mousse, so watch carefully.

Folding the whipped cream and egg whites into the melted chocolate requires a gentle hand. Use a rubber spatula and a folding motion to combine, which helps retain the airiness. It's essential to fold until no streaks are visible to ensure a uniform texture, but be careful not to overmix, as it can deflate the mousse.

Ingredients

Gather these ingredients to create your delicious Mini Heart Cakes with Chocolate Mousse:

For the Cake:

1 cup all-purpose flour
1/2 cup sugar
1/2 cup unsalted butter, softened
1/4 cup milk
2 large eggs
1 teaspoon vanilla extract
1/2 teaspoon baking powder
1/4 teaspoon salt

For the Chocolate Mousse:

7 oz dark chocolate, chopped
1 cup heavy cream
2 tablespoons sugar
1 teaspoon vanilla extract
2 large egg whites
1/4 teaspoon salt

Ensure all ingredients are fresh for the best flavor!

Instructions

Follow these steps to create your Mini Heart Cakes:

Prepare the Cake Batter

Preheat your oven to 350°F (175°C). In a mixing bowl, cream together the butter and sugar until light and fluffy. Beat in the eggs one at a time, mixing well after each addition. Stir in the milk and vanilla extract. In another bowl, combine the flour, baking powder, and salt. Gradually add the dry ingredients to the wet mixture, mixing until just combined.

Bake the Cakes

Pour the batter into heart-shaped molds, filling each about halfway. Bake for 12-15 minutes or until a toothpick inserted in the center comes out clean. Let cool before removing from the molds.

Make the Chocolate Mousse

Melt the chopped chocolate in a heatproof bowl over simmering water. Let cool slightly. Whip the heavy cream with sugar and vanilla until soft peaks form. In a separate bowl, beat the egg whites with salt until stiff peaks form. Gently fold the melted chocolate into the whipped cream, then fold in the egg whites until no streaks remain.

Assemble the Cakes

Once the cakes are cool, cut a small circle out of the top of each to create a small cavity. Fill each cavity with chocolate mousse. Chill the assembled cakes for at least 30 minutes before serving.

Enjoy decorating with whipped cream or fresh fruit if desired!

Pro Tips

For an extra touch, you can sprinkle cocoa powder on top or add a drizzle of chocolate sauce before serving!

Make-Ahead Tips

These Mini Heart Cakes can be made a day in advance, which is perfect for busy schedules. After assembling the cakes with the mousse, simply cover them with plastic wrap and store them in the refrigerator. This resting time enhances the flavors and textures, allowing the mousse to set and the cakes to absorb some of the moisture from the chocolate.

If you’re considering serving them for an event, it’s a good idea to prepare the cake layers the night before and store them in an airtight container at room temperature, then fill them with the mousse on the day of serving for the freshest taste.

Serving Suggestions

To elevate the presentation of your Mini Heart Cakes, consider garnishing them with fresh berries or a drizzle of chocolate sauce. A few sprigs of mint can also add a refreshing contrast both in flavor and color. Using a light dusting of cocoa powder or powdered sugar on top can provide an elegant finish.

If you want to surprise your guests, serve the cakes alongside a scoop of vanilla or raspberry sorbet. The cold, fruity sorbet pairs well with the rich chocolate mousse and adds a refreshing element to your dessert course.

Questions About Recipes

→ Can I use a different flavor of mousse?

Absolutely! Vanilla or raspberry mousses would also pair beautifully with these heart cakes.

→ How long can I store the mousse?

The chocolate mousse can be stored in the fridge for up to 3 days, but it's best enjoyed fresh.

→ Can I make the cakes ahead of time?

Yes, you can bake the cakes a day in advance; just assemble them the day you plan to serve.

→ What can I substitute for eggs in the mousse?

You can substitute aquafaba (chickpea water) for the egg whites for a vegan option.