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Indulgent Moelleux au Chocolat that Melts in Your Mouth

Published: Sep 4, 2025 by Lina maywgor · This post may contain affiliate links ·

As I stared into my pantry, I stumbled upon a hidden gem: a few bars of dark chocolate, just waiting to be transformed. That's when the idea struck me—I needed to whip up a classic Moelleux au Chocolat. This French dessert marries rich chocolate and buttery goodness, turning any gathering into a sweet celebration. With its quick prep time and impressive, gooey center, this cake is perfect for that last-minute invitation or a cozy night in. As the oven works its magic, the aroma will fill your kitchen, inviting family and friends to indulge. What’s your favorite way to elevate a simple dessert into something extraordinary? Let’s dive into this irresistible recipe!

Why Is This Moelleux au Chocolat Special?

Decadent Chocolate Delight: This recipe captures the essence of rich, melt-in-your-mouth chocolate, making it irresistible for any dessert lover.
Easy to Master: With just a handful of basic ingredients and straightforward techniques, even beginner bakers can impress with this elegant treat.
Perfectly Gooey Center: The secret lies in a double-baking method that delivers a soft, molten heart which will have everyone coming back for seconds.
Versatile Serving Options: Pair it with vanilla ice cream, fresh berries, or a drizzle of warm custard for an elevated experience that fits any occasion.
Crowd-Pleasing Appeal: Whether for a dinner party or a cozy night in, this Moelleux au Chocolat impresses every time, uniting chocolate lovers in blissful harmony.

Moelleux au Chocolat Ingredients

For the Batter

  • Unsalted butter – 225 g, crucial for creating a rich, creamy texture.
  • Good-quality 70% dark chocolate – 225 g, for an intense chocolate flavor that shines through.
  • Cocoa powder – 75 g, enhances the chocolatey depth; use Dutch-processed for a smoother taste.
  • Caster sugar – 265 g, melts easily for a smooth batter; substitute with coconut sugar for a slight caramel note.
  • Large eggs – 4, these provide structure and moisture; room temperature eggs whip better for a light texture.

Optional Serving Suggestions

  • Vanilla ice cream – a perfect contrast to the warm, gooey center.
  • Fresh berries – add a pop of color and tartness to balance the sweetness.
  • Warm custard – for a luxurious, creamy twist that enhances each bite.

Step‑by‑Step Instructions for Moelleux au Chocolat

Step 1: Preheat the Oven and Prepare the Tin
Start by preheating your oven to 180°C fan (355°F fan) or 200°C (400°F without a fan). While the oven warms up, take a 23cm (9-inch) springform tin, butter it generously, and line the base with baking paper to ensure easy removal of your decadent Moelleux au Chocolat later.

Step 2: Melt the Butter and Chocolate
In a microwave-safe bowl or a heatproof dish over simmering water, combine 225 g of unsalted butter and 225 g of good-quality 70% dark chocolate. Heat gently until everything is melted and thoroughly blended—this should take about 2-3 minutes. Stir until the mixture is smooth and glossy, imparting an irresistible aroma.

Step 3: Add Cocoa Powder
Sift in 75 g of cocoa powder along with a pinch of salt into the melted chocolate mixture. Gently stir the ingredients together until a rich, smooth batter forms. This step enhances the chocolate flavor, making your Moelleux au Chocolat deeply indulgent and luxurious.

Step 4: Whisk Egg Yolks and Sugar
Now, separate the 4 large eggs, placing the yolks in a separate bowl. Add half of the 265 g of caster sugar and whisk vigorously for about 2 minutes, until the mixture turns light, pale, and thick. This process incorporates air, ensuring a fluffy texture in your dessert.

Step 5: Whip Egg Whites
In a clean bowl, use an electric whisk to beat the remaining egg whites until soft peaks begin to form. Gradually add the other half of the caster sugar while continuing to beat until you achieve a glossy, stiff meringue. This fluffy cloud will help create that perfect gooey center in your Moelleux au Chocolat.

Step 6: Combine Chocolate Mixture with Egg Yolks
Pour the warm melted chocolate mixture into the bowl with the whipped egg yolks. Stir gently until fully combined, being careful not to deflate the mixture. The blend should be luxurious and rich, setting the stage for the wondrous texture of your cake.

Step 7: Fold in the Egg Whites
To lighten the chocolate batter, fold in two spoons of the whipped egg whites until just combined. Then, gently add the remaining egg whites with a folding motion, being mindful to retain as much air as possible. This will ensure your Moelleux au Chocolat bakes to a perfect, airy consistency.

Step 8: Bake the First Layer
Pour two-thirds of the chocolate batter into the prepared springform tin, smoothing the top with a spatula. Place it in the preheated oven and bake for about 25 minutes, or until it’s puffed up and a skewer inserted into the center comes out clean, signaling that your base is perfectly set.

Step 9: Add the Remaining Batter
Once the base has cooled completely in the tin, spread the remaining chocolate batter over the top. Return it to the oven, baking at 180°C fan for an additional 10-15 minutes until a thin crust forms on top, while the center remains soft and gooey—this is the secret to a wonderful Moelleux au Chocolat!

Step 10: Cool and Slice
After baking, allow the cake to rest in the tin for about 10 minutes. This brief cooling period helps the cake set, making it easier to slice. Once ready, gently remove it from the tin, and your elegant Moelleux au Chocolat is ready to be served, warm and inviting!

Expert Tips for Moelleux au Chocolat

  • Quality Ingredients: Always use high-quality dark chocolate for the best flavor. The chocolate is the star of this Moelleux au Chocolat, so don’t skimp!

  • Separate Eggs Correctly: Ensure no yolk gets into your egg whites. A single drop could prevent them from whipping to stiff peaks, affecting your cake’s texture.

  • Room Temperature Eggs: Using eggs at room temperature helps them whip up higher, resulting in a lighter batter. Take them out of the fridge about 30 minutes before starting.

  • Gentle Folding Technique: When incorporating the egg whites, fold them gently to maintain airiness. Avoid stirring vigorously, which can deflate your Moelleux au Chocolat.

  • Cool the Base Completely: Allow the first layer to cool completely before adding the top layer. This ensures a perfect two-toned texture when baked.

Make Ahead Options

These Moelleux au Chocolat cakes are a dream for meal prep enthusiasts! You can prepare the batter up to 24 hours in advance by mixing it completely and storing it in an airtight container in the fridge. This not only saves you time on busy weeknights but also ensures that the flavors meld beautifully overnight. When you're ready to bake, simply allow the batter to sit at room temperature for about 15 minutes before pouring it into the prepared tin and baking according to the instructions. To maintain that luscious gooey texture, remember to cool the cake completely in the tin before slicing, making every bite just as delicious as if it were freshly made!

Moelleux au Chocolat Variations

Feel free to get creative with this decadent dessert, adding your own twist to make it truly yours!

  • Gluten-Free: Substitute regular cocoa powder with gluten-free cocoa or use almond flour for a nutty flavor.
  • Nutty Delight: Add 100 g of chopped hazelnuts or walnuts for a crunchy contrast to the fudgy texture.
  • Flavor Boost: Infuse with a teaspoon of espresso powder in the chocolate mixture for a rich coffee undertone.
  • Zesty Twist: Incorporate the zest of one orange or lemon for a refreshing citrus surprise that brightens the chocolate.
  • Caramel Swirl: Drizzle a layer of caramel sauce into the batter before baking to create a beautiful swirl of flavors.
  • Spicy Heat: Mix in a pinch of cayenne pepper or cinnamon for a warm, spicy kick that complements the chocolate.
  • Vegan Version: Swap eggs for flaxseed meal mixed with water and replace butter with coconut oil for a plant-based treat.
  • Boozy Addition: Add a splash of rum or bourbon to the chocolate mixture for a sophisticated adult twist that elevates this classic.

Let your imagination run wild and enjoy customizing this indulgent Moelleux au Chocolat!

How to Store and Freeze Moelleux au Chocolat

Fridge: Store leftover Moelleux au Chocolat in an airtight container for up to 3 days. To maintain its gooey center, avoid refrigerating it too long.

Freezer: For longer storage, freeze your Moelleux au Chocolat by wrapping it tightly in plastic wrap and then aluminum foil. It can last up to 3 months in the freezer.

Thawing: Thaw frozen Moelleux au Chocolat overnight in the fridge before reheating to preserve its moist texture and rich flavor.

Reheating: Warm individual slices in the microwave for about 15-20 seconds, or enjoy it at room temperature for a delightful experience!

What to Serve with Moelleux au Chocolat?

Indulging in a slice of this chocolate masterpiece is blissful, but pairing it with the right sides elevates the experience to pure magic.

  • Vanilla Ice Cream: A scoop of creamy goodness complements the warm, gooey center, creating a delightful contrast in temperature and texture. There's something quintessentially indulgent about this pairing that never fails to satisfy.

  • Fresh Berries: Add a refreshing touch with raspberries, strawberries, or blueberries. Their tartness cuts through the richness of the cake, balancing every bite beautifully and introducing a vibrant pop of color to your plate.

  • Warm Custard: Drizzling warm custard over your Moelleux au Chocolat transforms it into an elegant dessert. The silky smoothness of the custard enhances the chocolate flavor, leaving your taste buds dancing with joy.

  • Whipped Cream: Lightly sweetened whipped cream adds a fluffy element that contrasts the dense, rich cake. It melds perfectly with the chocolate, making each bite divine.

  • Espresso or Coffee: A strong cup of coffee or a rich espresso can enhance the chocolate's bold flavors. The warmth and slight bitterness of the coffee will beautifully balance out the sweetness.

  • Chocolate Sauce: For the ultimate chocolate lover's experience, drizzle some melted chocolate sauce over the cake for an extra indulgent treat. This adds another layer of richness that’s absolutely irresistible.

  • Red Wine: Pairing your dessert with a glass of good-quality red wine, like a Port or a Merlot, is a sophisticated choice. The tannins in the wine highlight the chocolate notes, enriching your tasting journey.

  • Cheesecake Bites: For a delightful dessert platter, serve mini cheesecake bites alongside your Moelleux au Chocolat. Their creamy tang offers a delightful contrast that your guests will adore.

  • Coconut Macaroons: These chewy, sweet treats bring a fun texture to your dessert table, with their crisp exterior and soft inside providing a lovely contrast to the dense cake.

  • Chocolate Mousse: For a double-chocolate delight, consider offering a light, airy chocolate mousse as a companion. This will satisfy every chocolate craving and add whimsical layers to your dessert experience.

Moelleux au Chocolat Recipe FAQs

How do I select the best dark chocolate for my Moelleux au Chocolat?
Absolutely! Look for a good-quality 70% dark chocolate. The higher cocoa content will yield a richer flavor. Check for a smooth texture and a robust aroma. Avoid chocolate labeled as "baking chocolate" as it often contains added sugars or waxes that can alter the cake's intended richness.

How should I store my leftover Moelleux au Chocolat?
To keep your Moelleux au Chocolat fresh, store it in an airtight container in the fridge for up to 3 days. This helps maintain its gooey center. Just let it come to room temperature before serving, or warm individual slices in the microwave for about 15-20 seconds to bring back its lusciousness.

Can I freeze Moelleux au Chocolat, and if so, how?
Yes, you can freeze your Moelleux au Chocolat! First, allow it to cool completely. Then, wrap it tightly in plastic wrap followed by aluminum foil to prevent freezer burn. It can be stored for up to 3 months. When you're ready to enjoy it, thaw overnight in the fridge and reheat gently to restore its melt-in-the-mouth texture.

What should I do if my cake doesn’t rise?
Very! If your Moelleux au Chocolat doesn’t rise well, it could be due to under-whipped egg whites. Make sure to beat them until stiff peaks form, which adds the necessary air and lightness to your batter. Also, check that your baking powder is fresh if you’re using it or ensure your oven is at the right temperature.

Is Moelleux au Chocolat safe for people with egg allergies?
While this recipe is delicious as is, it contains eggs, which can be a concern for those with allergies. You could try using egg substitutes such as applesauce, silken tofu, or flaxseed meal mixed with water. However, substituting may affect the cake's texture, so adjust the recipe accordingly, perhaps testing a small batch first!

How can I enhance the flavor of my Moelleux au Chocolat?
I often make my cake extra special by adding a teaspoon of espresso powder to the batter. It elevates the chocolate flavor beautifully. Additionally, consider adding a splash of vanilla extract or a few tablespoons of orange zest for a delightful twist! Enjoy experimenting!

Moelleux au Chocolat

Indulgent Moelleux au Chocolat that Melts in Your Mouth

Experience the rich, melt-in-your-mouth goodness of Moelleux au Chocolat, a classic French dessert that impresses at any gathering.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 40 minutes mins
Cooling Time 10 minutes mins
Total Time 1 hour hr 5 minutes mins
Servings: 8 slices
Course: easy cakes
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Batter
  • 225 g Unsalted butter crucial for creating a rich, creamy texture.
  • 225 g Good-quality 70% dark chocolate for an intense chocolate flavor.
  • 75 g Cocoa powder enhances the chocolatey depth; use Dutch-processed.
  • 265 g Caster sugar melts easily for a smooth batter; substitute with coconut sugar for a caramel note.
  • 4 large Eggs provide structure and moisture; room temperature eggs whip better.
Optional Serving Suggestions
  • Vanilla ice cream a perfect contrast to the warm, gooey center.
  • Fresh berries add a pop of color and tartness.
  • Warm custard for a luxurious, creamy twist.

Equipment

  • Microwave-safe bowl
  • heatproof dish
  • Whisk
  • springform tin
  • Oven

Method
 

Step-by-Step Instructions
  1. Preheat the oven to 180°C fan (355°F) or 200°C (400°F) without a fan. Butter a 23cm springform tin and line the base with baking paper.
  2. Combine 225 g unsalted butter and 225 g dark chocolate in a microwave-safe bowl. Heat gently until melted, about 2-3 minutes.
  3. Sift in 75 g cocoa powder with a pinch of salt into the chocolate mixture and stir until smooth.
  4. Separate the eggs. Whisk egg yolks with half of 265 g caster sugar for about 2 minutes until light and thick.
  5. Beat egg whites until soft peaks form, gradually adding remaining caster sugar until glossy.
  6. Combine the melted chocolate mixture with the egg yolks, stirring gently.
  7. Fold in two spoons of the whipped egg whites, then gently add the rest.
  8. Pour two-thirds of the batter into the prepared tin and bake for about 25 minutes.
  9. Once cooled, spread the remaining batter on top and bake for an additional 10-15 minutes.
  10. Allow the cake to cool in the tin for 10 minutes before removing and serving warm.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 40gProtein: 6gFat: 20gSaturated Fat: 12gCholesterol: 150mgSodium: 100mgPotassium: 200mgFiber: 3gSugar: 25gVitamin A: 10IUCalcium: 2mgIron: 10mg

Notes

Use high-quality dark chocolate for the best flavor. Room temperature eggs help achieve a lighter batter. Allow the first layer to cool completely before adding the top layer.

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