Mini Heart Cake with Chocolate Mousse

Highlighted under: Baking & Desserts

I love making desserts that look as good as they taste, and this Mini Heart Cake with Chocolate Mousse is a perfect example! With its rich layers of chocolate and a delicate heart shape, it always brings a smile to my loved ones' faces. This cake is a delightful combination of fluffy sponge and luscious mousse that melts in your mouth. It's perfect for special occasions or simply as a treat to brighten up any day. Trust me, once you try this recipe, it will become a go-to for your celebrations!

Jasmine Porter

Created by

Jasmine Porter

Last updated on 2026-01-12T01:01:15.674Z

When I first made this Mini Heart Cake, I wanted to create something that captured the essence of love and celebration. I experimented with various cocoa powders until I found one that provided the richest flavor without being too bitter. The result was a moist sponge that pairs perfectly with the decadent chocolate mousse. It’s truly a labor of love!

One key tip I learned is to chill the mousse for at least 30 minutes before assembling the cake. This helps it hold its shape and creates a beautiful, silky texture that complements the fluffy sponge. It made all the difference, and I can assure you, everyone will be asking for seconds!

Why You'll Love This Recipe

  • Rich chocolate flavor paired with fresh orange zest
  • Creamy texture that melts in your mouth
  • Perfect for celebrations or as a sweet indulgence

Understanding the Ingredients

The key to a successful Mini Heart Cake is in the ingredients. Using high-quality dark chocolate for the mousse will enhance its flavor significantly. I recommend brands like Valrhona or Ghirardelli, which melt beautifully and provide a rich chocolate experience. Additionally, the fresh orange zest elevates the chocolate flavor, adding a subtle brightness that pairs wonderfully with the richness of the mousse.

Pay attention to the temperature of your eggs while preparing the batter. Room temperature eggs help create a lighter texture in the cake, as they emulsify better with the other ingredients. If you forget to take them out ahead of time, you can submerge them in warm water for 10-15 minutes before using them.

Perfecting the Mousse

When making the chocolate mousse, it’s vital to melt the chocolate gently to prevent it from seizing. You can create a double boiler by placing a heatproof bowl over simmering water, ensuring the bowl doesn’t touch the water. Stir continuously until the chocolate is melted and glossy, then let it cool only slightly before incorporating into your mixture—this prevents the eggs from cooking when they are added.

Folding techniques are crucial in achieving the airy consistency of the mousse. Start by mixing a small amount of whipped cream into the melted chocolate to lighten it, which makes it easier to fold in the rest without deflating the mixture. Use a spatula to fold gently from the bottom and go around the sides to incorporate everything evenly, ensuring the mousse remains fluffy.

Ingredients

Ingredients

For the Mini Heart Cakes

  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 3 large eggs
  • 1/2 cup granulated sugar
  • 1/4 cup melted butter
  • 1 teaspoon vanilla extract

For the Chocolate Mousse

  • 5 ounces dark chocolate, chopped
  • 2 tablespoons warm water
  • 2 large eggs, separated
  • 1/4 cup granulated sugar
  • 1 cup heavy cream
  • 1 teaspoon vanilla extract

Instructions

Steps to Make the Cake

Prepare the Cake Batter

Preheat your oven to 350°F (175°C). Grease and flour two heart-shaped cake pans. In a bowl, whisk together flour, cocoa powder, baking powder, and salt.

In another bowl, beat eggs and sugar until fluffy. Gradually mix in melted butter and vanilla. Combine the wet and dry ingredients until just combined.

Bake the Cakes

Divide the batter equally between the prepared pans. Bake for 25 minutes, or until a toothpick inserted in the center comes out clean. Allow the cakes to cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.

Make the Chocolate Mousse

Melt dark chocolate with warm water in a heatproof bowl. Let it cool slightly. Beat egg whites until stiff peaks form. In a separate bowl, beat egg yolks with sugar until creamy.

Fold in melted chocolate, then gently fold in whipped cream and finally the egg whites until well combined.

Assemble the Cake

Once the cakes are fully cooled, place one layer on a serving plate. Spread a layer of mousse on top, then add the second cake layer. Frost the top and sides with the remaining mousse.

Chill for at least 1 hour before serving.

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Pro Tips

  • For the fluffiest mousse, avoid overmixing the whipped cream and egg whites. This will ensure a light and airy texture that perfectly complements the cake layers.

Storing and Serving

This Mini Heart Cake can be made ahead of time, making it perfect for celebrations. After assembling, chill it in the refrigerator for up to three days. For best texture and flavor, serve the cake within the first two days to enjoy the mousse at its peak creaminess. If you need to store leftovers, cover the cake tightly with plastic wrap to prevent it from drying out.

When serving, consider garnishing the cake with fresh berries or a dusting of powdered sugar for a pop of color. Alternatively, a drizzle of berry compote can complement the chocolate and provide a lovely tartness that balances the sweetness of the mousse.

Variations and Customizations

Feel free to experiment with flavors to personalize your Mini Heart Cake. Adding a layer of raspberry or strawberry jam between the cake layers introduces a fruity note that pairs beautifully with the chocolate. You can also swap out the orange zest for lemon or peppermint extract for a refreshing twist.

If you need a gluten-free option, substitute the all-purpose flour with a gluten-free blend. Just ensure that it includes xanthan gum for the best texture. And for a dairy-free version, opt for dark chocolate that is dairy-free and substitute the heavy cream with coconut cream or a whipped dairy-free alternative to create a rich mousse.

Questions About Recipes

→ Can I make this cake in advance?

Yes, you can prepare the cakes a day ahead and store them covered in the refrigerator. Assemble them just before serving.

→ Can I substitute the dark chocolate?

Absolutely! You can use milk chocolate for a sweeter mousse or even white chocolate for a different flavor.

→ What can I use instead of eggs?

For an egg-free alternative, try using flaxseed meal or a commercial egg replacer suitable for baking.

→ How can I decorate the cake?

Use fresh berries, chocolate shavings, or a light dusting of cocoa powder for a beautiful presentation.

Mini Heart Cake with Chocolate Mousse

I love making desserts that look as good as they taste, and this Mini Heart Cake with Chocolate Mousse is a perfect example! With its rich layers of chocolate and a delicate heart shape, it always brings a smile to my loved ones' faces. This cake is a delightful combination of fluffy sponge and luscious mousse that melts in your mouth. It's perfect for special occasions or simply as a treat to brighten up any day. Trust me, once you try this recipe, it will become a go-to for your celebrations!

Prep Time30 minutes
Cooking Duration25 minutes
Overall Time55 minutes

Created by: Jasmine Porter

Recipe Type: Baking & Desserts

Skill Level: Intermediate

Final Quantity: 6 servings

What You'll Need

For the Mini Heart Cakes

  1. 1 cup all-purpose flour
  2. 1/2 cup unsweetened cocoa powder
  3. 1/2 teaspoon baking powder
  4. 1/4 teaspoon salt
  5. 3 large eggs
  6. 1/2 cup granulated sugar
  7. 1/4 cup melted butter
  8. 1 teaspoon vanilla extract

For the Chocolate Mousse

  1. 5 ounces dark chocolate, chopped
  2. 2 tablespoons warm water
  3. 2 large eggs, separated
  4. 1/4 cup granulated sugar
  5. 1 cup heavy cream
  6. 1 teaspoon vanilla extract

How-To Steps

Step 01

Preheat your oven to 350°F (175°C). Grease and flour two heart-shaped cake pans. In a bowl, whisk together flour, cocoa powder, baking powder, and salt. In another bowl, beat eggs and sugar until fluffy. Gradually mix in melted butter and vanilla. Combine the wet and dry ingredients until just combined.

Step 02

Divide the batter equally between the prepared pans. Bake for 25 minutes, or until a toothpick inserted in the center comes out clean. Allow the cakes to cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.

Step 03

Melt dark chocolate with warm water in a heatproof bowl. Let it cool slightly. Beat egg whites until stiff peaks form. In a separate bowl, beat egg yolks with sugar until creamy. Fold in melted chocolate, then gently fold in whipped cream and finally the egg whites until well combined.

Step 04

Once the cakes are fully cooled, place one layer on a serving plate. Spread a layer of mousse on top, then add the second cake layer. Frost the top and sides with the remaining mousse. Chill for at least 1 hour before serving.

Extra Tips

  1. For the fluffiest mousse, avoid overmixing the whipped cream and egg whites. This will ensure a light and airy texture that perfectly complements the cake layers.

Nutritional Breakdown (Per Serving)

  • Calories: 300 kcal
  • Total Fat: 20g
  • Saturated Fat: 10g
  • Cholesterol: 75mg
  • Sodium: 90mg
  • Total Carbohydrates: 28g
  • Dietary Fiber: 2g
  • Sugars: 18g
  • Protein: 4g