Name: Baked Chocolate Mousse Cake
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Ingredients: 2 cups bittersweet chocolate (finely chopped); 14 tablespoons unsalted butter; 1/8 teaspoon salt; 10 large eggs (separated); 1/4 teaspoon cream of tartar; 1/2 cup granulated sugar (divided); Cocoa powder (to dust the pan)

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Indulging in a rich, decadent dessert can be a transformative experience, and there’s nothing quite like a Baked Chocolate Mousse Cake to satisfy that craving for chocolate. This cake is not just a dessert; it’s an event—a velvety, airy creation that melts in your mouth and leaves you wanting more. The combination of bittersweet chocolate and buttery richness, coupled with the lightness of whipped egg whites, makes this cake a heavenly treat. Perfect for special occasions or a cozy night in, let’s dive into making this divine dessert.

Why This Recipe Is Reliable

This Baked Chocolate Mousse Cake is a tried-and-true recipe that has been perfected over time. It strikes the right balance between being easy enough for novice bakers while still delivering a sophisticated taste that will impress guests. With a few simple ingredients and straightforward steps, you’ll find that this cake is not only reliable but also incredibly rewarding. The use of bittersweet chocolate creates a depth of flavor, while the technique of folding in whipped egg whites ensures a light and airy texture. You can trust that this recipe will yield a stunning cake every single time.

Ingredients at a Glance

2 cups (16 ounces) bittersweet chocolate, finely chopped
14 tablespoons (7 ounces) unsalted butter
1/8 teaspoon salt
10 large eggs, separated
1/4 teaspoon cream of tartar
1/2 cup (3 1/2 ounces plus 2 tablespoons) granulated sugar, divided
Cocoa powder to dust the pan

Cook’s Kit

Mixing bowls: For separating and mixing the egg whites and yolks.
Whisk: Essential for whipping the egg whites to soft peaks.
Double boiler or microwave-safe bowl: For melting chocolate and butter together.
Rubber spatula: Perfect for folding ingredients gently.
9-inch round cake pan: The ideal size for this cake—don’t forget to line it!
Oven thermometer: To ensure your oven is at the right temperature for baking.

Step-by-Step: Baked Chocolate Mousse Cake

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). This ensures that your cake bakes evenly and achieves the perfect texture.

Step 2: Prepare the Pan

Grease a 9-inch round cake pan with unsalted butter and dust it with cocoa powder. This will help the cake release easily once baked.

Step 3: Melt Chocolate and Butter

In a double boiler or microwave-safe bowl, combine the finely chopped bittersweet chocolate and unsalted butter. If using a microwave, melt in 30-second intervals, stirring in between until smooth. Once melted, set aside to cool slightly.

Step 4: Separate the Eggs

Carefully separate the egg yolks from the whites. Place the yolks in one mixing bowl and the whites in another. Be sure no yolk gets into the whites to ensure they whip properly.

Step 5: Whisk Egg Yolks and Sugar

Add 1/4 cup of the granulated sugar to the bowl with the egg yolks. Whisk until the mixture is pale and creamy. Gradually incorporate the melted chocolate and butter mixture, mixing until fully combined.

Step 6: Beat the Egg Whites

In the bowl with the egg whites, add the cream of tartar and beat until soft peaks form. Gradually add the remaining granulated sugar, continuing to beat until stiff peaks form. This will add volume and lightness to the cake.

Step 7: Fold the Mixtures Together

Gently fold the whipped egg whites into the chocolate mixture, a third at a time, being careful not to deflate the airy texture. The goal is to create a smooth, homogenous batter.

Step 8: Bake the Cake

Pour the batter into the prepared cake pan and smooth the top with a spatula. Bake for 25-30 minutes, or until the center is set but still slightly jiggly. The cake will rise and then fall as it cools.

Step 9: Cool the Cake

Remove the cake from the oven and allow it to cool in the pan for about 10 minutes. Then, carefully invert it onto a serving plate and let it cool completely.

Step 10: Serve and Enjoy!

Once cooled, dust the top with cocoa powder or powdered sugar for a beautiful finish. Slice and serve this indulgent Baked Chocolate Mousse Cake to your eager guests, and watch their eyes light up with delight.

Make It Diet-Friendly

Gluten-free: Ensure that the cocoa powder used is labeled gluten-free.
Lower sugar: Substitute some of the granulated sugar with a sugar alternative if desired.
Dairy-free: Replace unsalted butter with a dairy-free butter alternative.
Vegan: Use aquafaba (chickpea water) in place of eggs for a plant-based version.

Pitfalls & How to Prevent Them

To ensure your Baked Chocolate Mousse Cake turns out perfectly, here are some common pitfalls and how to avoid them:

Overmixing: Be gentle when folding in the egg whites; overmixing can lead to a dense cake.
Undermixing: Ensure all ingredients are fully incorporated, but do so carefully.
Incorrect oven temperature: Always check your oven with a thermometer to ensure accurate baking conditions.
Not cooling properly: Allow the cake to cool completely in the pan, as this helps it set properly.

Keep-It-Fresh Plan

This Baked Chocolate Mousse Cake can be kept fresh for several days if stored properly. Here’s how:

Refrigerate: Store in an airtight container in the fridge for up to 5 days.
Freeze: Wrap slices tightly in plastic wrap and freeze for up to 3 months. Thaw in the refrigerator before serving.
Serve chilled: This cake is delightful served cold, so you may enjoy it straight from the fridge!

Ask the Chef

Can I use different types of chocolate?

Absolutely! While bittersweet chocolate is recommended for its rich flavor, you can experiment with semi-sweet or dark chocolate for varying taste profiles. Just be mindful of the sugar content if you choose a sweeter chocolate.

What can I serve with this cake?

This cake pairs wonderfully with whipped cream, fresh berries, or a scoop of vanilla ice cream. A drizzle of chocolate sauce or caramel can elevate it even further.

How do I know when the cake is done baking?

The cake should be set around the edges but still slightly jiggly in the center. It will firm up as it cools, so avoid overbaking to maintain that mousse-like texture.

Can I make this cake ahead of time?

Yes! This cake can be made a day in advance. Simply store it in the refrigerator, and it will taste even better the next day as the flavors meld together.

Save & Share

This Baked Chocolate Mousse Cake is sure to become a favorite in your home. Don’t forget to share this delightful recipe with friends and family! Capture those moments of indulgence and spread the joy of baking. Whether you post it on social media, send it to a friend, or serve it at your next gathering, this cake is bound to impress.

Creating this Baked Chocolate Mousse Cake is more than just following a recipe; it’s about savoring the process and enjoying the rich, chocolatey rewards. From the luscious aroma that fills your kitchen to the satisfying moment of slicing into that fluffy, mousse-like interior, every step is a joy. So gather your ingredients, roll up your sleeves, and get ready to experience the magic of this incredible dessert!