As I stood in my kitchen, I was met with the intoxicating aroma of melting chocolate, instantly transforming the room into a haven of sweet anticipation. This is the moment I knew I was about to create something special—a Decadent Tuxedo Bar Cake. With its rich layers of moist chocolate cake, light mousse, and creamy cheese, this dessert is more than a treat; it’s a show-stopping centerpiece that elevates any occasion. Whether you’re hosting a party or simply treating yourself, this cake comes together without fuss, allowing you to enjoy its elegant flavors in no time. Plus, it’s versatile enough to adapt for gluten-free or dairy-free diets without sacrificing that indulgent taste we all crave. Ready to find out how to craft this masterpiece in your own kitchen? Let’s dive in!

Why is Tuxedo Bar Cake so irresistible?
Indulgence in Every Bite: This cake combines luscious chocolate cake with airy mousse and creamy cheese, creating a flavor explosion that you’ll love.
Versatile Options: Worried about dietary restrictions? You can easily whip up a gluten-free or dairy-free version without compromising flavor.
Easy to Make: With straightforward steps, you’ll impress your guests without spending all day in the kitchen.
Visual Delight: The glossy ganache and decorative truffles make this dessert a stunning centerpiece, perfect for any celebration.
Perfect Pairings: Serve it alongside fresh strawberries or a cup of coffee for a complete experience that satisfies all cravings.
Fun Variations: Get creative by turning this recipe into mini tuxedo cupcakes or adding fresh berries for a gourmet touch!
Decadent Tuxedo Bar Cake Ingredients
• Your ultimate guide to baking bliss!
For the Cake
- Unsalted Butter – Adds rich moisture and flavor; substitute with dairy-free butter for dairy-free variations.
- Water – Essential for melting the butter and cocoa together.
- Unsweet Dark Cocoa Powder – Offers a deep chocolate flavor, making your Decadent Tuxedo Bar Cake irresistible.
- All-Purpose Flour – Serves as the structural base; can be replaced with gluten-free flour for dietary needs.
- Light Brown Sugar – Adds caramel sweetness to elevate the cake’s flavor.
- Espresso Powder – Enhances the chocolate flavor; optional for a coffee kick.
- Baking Soda – Vital for the cake to rise and achieve its fluffy texture.
- Fine Grain Sea Salt – Balances the sweetness of the cake for a more rounded flavor.
- Buttermilk – Tenderizes the cake; use dairy-free milk with an acid like lemon juice for dairy-free options.
- Large Eggs – Binds everything together, ensuring a cohesive texture.
- Vanilla Extract – Adds depth and warmth to the overall taste.
For the Mousse & Frosting
- Heavy Cream – Creates a light, airy texture for that sumptuous mousse layer.
- Semisweet Chocolate Chips – The essential ingredient that makes the mousse and ganache irresistible.
- Cream Cheese – Provides tanginess and a creamy base for the frosting.
- White Chocolate – Adds sweetness; ensure it’s melted and cooled slightly for the best texture.
- Confectioners’ Sugar – Sweetens both mousse and frosting to perfection.
- Sunflower Oil – Ensures a smooth ganache consistency for a glossy finish.
For the Decoration
- Rolled Cookie Wafer – A decorative element that adds visual appeal to your stunning cake.
- Fancy Chocolate Truffles – An indulgent touch that makes your Decadent Tuxedo Bar Cake truly special.
With these ingredients, you’re set to create a show-stopping dessert that’ll delight everyone at your table!
Step‑by‑Step Instructions for Decadent Tuxedo Bar Cake
Step 1: Preheat and Prepare Pans
Preheat your oven to 350°F (175°C) while you prepare two 9-inch round cake pans. Grease the pans with butter and dust them lightly with flour, ensuring all surfaces are covered. This step helps the cakes release easily after baking, which is crucial for the successful assembly of your Decadent Tuxedo Bar Cake.
Step 2: Melt the Chocolate Mixture
In a medium saucepan over medium heat, combine unsalted butter, water, and unsweet dark cocoa powder. Stir continuously for about 3–5 minutes until the mixture is melted, glossy, and fully combined. Remove it from heat and allow it to cool for 10 minutes—this melted mixture will be the star of your cake’s rich flavor.
Step 3: Mix Dry Ingredients
In a large mixing bowl, whisk together all-purpose flour, light brown sugar, baking soda, fine grain sea salt, and espresso powder (if using) until fully combined. This dry mixture will provide the necessary structure and sweetness to your Decadent Tuxedo Bar Cake, ensuring a delightful texture and flavor balance.
Step 4: Combine Ingredients
Gently fold the cooled chocolate mixture into the dry ingredients, mixing until they are just combined. Be careful not to overmix, as this can lead to a dense cake. The batter should be smooth yet slightly lumpy, hinting at the luxurious texture waiting to be baked.
Step 5: Add Wet Ingredients
Incorporate buttermilk, large eggs, and vanilla extract into the batter, stirring gently until the mixture is smooth and well-blended. The addition of these wet ingredients not only enhances the flavor but also contributes to the moistness that makes the Decadent Tuxedo Bar Cake irresistible.
Step 6: Bake the Cakes
Divide the batter evenly between the prepared cake pans. Place them in the preheated oven and bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean with a few moist crumbs attached. As the cakes bake, the delicious aroma will fill your kitchen, signaling that a sweet treat is on the way.
Step 7: Cool the Cakes
Once baked, remove the cakes from the oven and let them cool in the pans for about 10 minutes. Carefully turn them out onto a wire rack to cool completely. This step is vital to prevent the mousse layer from melting when you assemble your Decadent Tuxedo Bar Cake.
Step 8: Prepare the Mousse Layer
In a medium bowl, whip heavy cream using an electric mixer until stiff peaks form, about 3-5 minutes. Gently fold in semi-sweet chocolate chips until fully incorporated to create a rich and airy mousse layer that will add indulgence to your cake.
Step 9: Blend Cream Cheese Frosting
In a separate bowl, blend cream cheese, melted white chocolate, confectioners’ sugar, unsalted butter, and lemon juice until the mixture is smooth and creamy. This tangy and sweet frosting will perfectly complement the chocolate and mousse layers in your Decadent Tuxedo Bar Cake.
Step 10: Layer the Cake
Once the cakes are completely cool, begin assembling your Decadent Tuxedo Bar Cake. Place one cake layer on a serving plate, spread half of the chocolate mousse evenly on top, then add a layer of the cream cheese frosting. Repeat with the second layer, finishing with a generous layer of frosting.
Step 11: Make the Ganache
In a saucepan, heat additional semi-sweet chocolate chips, heavy cream, and sunflower oil on low heat until melted and smooth, stirring continuously. Allow the ganache to cool for about 10 minutes, which will help it thicken slightly before pouring over the assembled cake.
Step 12: Pour and Decorate
Carefully pour the glossy ganache over the top of the cake, allowing it to cascade beautifully down the sides. Finish your Decadent Tuxedo Bar Cake by decorating with additional frosting, fancy chocolate truffles, and rolled cookie wafers for an eye-catching presentation that will impress your guests.
Step 13: Serve and Share
Your decadent creation is ready to be served! Slice into this luxurious cake and enjoy the layers of moist chocolate cake, airy mousse, and creamy cheese, making every bite a reason to celebrate.

Decadent Tuxedo Bar Cake Variations
Feel free to unleash your creativity and personalize this indulgent dessert with these delightful twists that will dazzle your taste buds!
- Dairy-Free: Substitute unsalted butter with dairy-free butter and buttermilk with non-dairy milk and acid for a creamy, yet dairy-free delight.
- Gluten-Free: Use gluten-free flour in place of all-purpose flour to cater to those with gluten sensitivities, ensuring everyone can enjoy a slice!
- Dark Chocolate: Replace semisweet chocolate chips with dark chocolate for a richer, slightly more bitter flavor that chocolate lovers will adore.
- Nutty Crunch: Add chopped nuts, like pecans or walnuts, as a delightful layer for added texture, giving each bite a satisfying crunch.
- Berry Boost: Fold in fresh raspberries or strawberries into the mousse layer for a fruity twist that pairs beautifully with chocolate.
- Mini Cupcakes: Convert the recipe into mini tuxedo cupcakes for fun, bite-sized portions that are perfect for sharing at parties or gatherings.
- Flavored Mousse: Introduce flavored liqueurs, like orange or raspberry, to the mousse mix for a gourmet touch that elevates the entire dessert experience.
- Spicy Kick: Add a pinch of cayenne or chili powder to the cake batter for a surprising heat that beautifully contrasts the sweetness of the chocolate.
With these variations, you can create a unique experience every time you bake this Decadent Tuxedo Bar Cake, ensuring it becomes a family favorite for years to come! And if you’re looking for more creative dessert inspiration, check out my Moist Carrot Cake Delight or the stunning Cheesecake with Pumpkin Swirl for seasonal flair!
Make Ahead Options
These Decadent Tuxedo Bar Cakes are perfect for busy home cooks looking to save time! You can bake the cake layers up to 3 days in advance; simply cool them completely, wrap tightly in plastic wrap, and store in the refrigerator to maintain their freshness. Additionally, both the chocolate mousse and cream cheese frosting can be prepared 24 hours before serving; store them separately in airtight containers in the fridge. When you’re ready to serve, just layer the cake with the mousse and frosting, pour the ganache over, and enjoy a dessert that’s just as delicious, effortlessly assembled, and ready to impress.
Expert Tips for Decadent Tuxedo Bar Cake
- Room Temperature Ingredients: Ensure all dairy ingredients are at room temperature before mixing. This helps achieve a smoother batter and ensures your Decadent Tuxedo Bar Cake rises beautifully.
- Don’t Overmix: When combining your ingredients, mix just until incorporated. Overmixing can lead to a dense cake, robbing it of its light and airy texture.
- Cool Completely: Make sure your cakes are completely cooled before assembly. This prevents the mousse layer from melting and ensures clean, beautiful layers.
- Stir Ganache: When melting the ganache, stir continuously to achieve a silky smooth finish. Allow it to cool slightly before pouring for a perfect glaze.
- Flavor Boost: For a unique twist, try incorporating spices like cayenne or cinnamon into the mousse or cake batter, elevating the flavor of your Decadent Tuxedo Bar Cake.
How to Store and Freeze Decadent Tuxedo Bar Cake
Fridge: Store slices of the Decadent Tuxedo Bar Cake in an airtight container in the fridge for up to 3 days. This keeps the layers fresh and delicious.
Freezer: For longer storage, wrap the whole cake or individual slices tightly in plastic wrap, then foil, and freeze for up to 3 months. Defrost in the fridge overnight for the best texture.
Reheating: If you prefer your cake warm, microwave a slice for about 10-15 seconds, making sure not to overheat, which can dry it out.
Make-Ahead: You can prepare the cake layers up to 3 days in advance and store them wrapped in the fridge, while the mousse and cream cheese layers can be made 24 hours ahead for convenience.
What to Serve with Decadent Tuxedo Bar Cake
Elevate your dessert experience by pairing this indulgent cake with delightful accompaniments that enhance its rich flavors.
- Creamy Vanilla Ice Cream: Its cool creaminess balances the richness of the cake, creating a heavenly combination in every bite.
- Fresh Berries: Raspberries or strawberries add a burst of tartness, cutting through the sweetness and providing a refreshing contrast.
- Espresso or Coffee: The warm, bold flavors of coffee enhance the chocolate notes, making every slice even more decadent.
- Whipped Cream: A dollop of lightly sweetened or flavored whipped cream adds airy texture, perfectly complementing the cake’s richness.
- Chocolate Ganache Drizzle: For the ultimate indulgence, serve with extra ganache on the side to drizzle over each slice.
- Mint Leaves: A sprig of fresh mint provides a vibrant pop of color and refreshing taste that brightens up this luxurious dessert.
- Nuts: Toasted hazelnuts or almonds offer a delightful crunch, adding an exciting texture contrast that pairs beautifully with the cake’s layers.
- Port or Dessert Wine: A glass of sweet dessert wine elevates the entire experience and highlights the cake’s gourmet essence.

Decadent Tuxedo Bar Cake Recipe FAQs
What kind of cocoa powder should I use for the Decadent Tuxedo Bar Cake?
Absolutely! I recommend using unsweet dark cocoa powder for its deep chocolate flavor, which is essential for making this indulgent cake. If you prefer a milder taste, you could opt for a regular unsweetened cocoa powder, but it may not provide the same richness.
How should I store my Decadent Tuxedo Bar Cake once it’s baked?
To keep your cake fresh, store it in an airtight container in the fridge for up to 3 days. This will maintain its moisture and flavors. If you notice the cake beginning to dry out, consider using a damp paper towel inside the container to help retain moisture.
Can I freeze the Decadent Tuxedo Bar Cake?
Yes, you can! Wrap the whole cake or individual slices tightly in plastic wrap and then in aluminum foil. This method keeps the cake protected and allows you to freeze it for up to 3 months. When you’re ready to enjoy it, simply thaw it in the fridge overnight for the best texture.
How can I avoid my mousse melting when assembling the cake?
To prevent the mousse from melting during assembly, it’s crucial to keep your cakes completely cooled before layering. Once you’ve whipped the heavy cream to stiff peaks, work quickly and assemble the cake promptly. Additionally, refrigerating the assembled cake for about 30 minutes before serving can help maintain the mousse’s texture.
Are there any alternatives for cream cheese due to dietary restrictions?
If you have dietary sensitivities or prefer not to use cream cheese, you can substitute it with dairy-free cream cheese alternatives available in many grocery stores. They work beautifully in the frosting and maintain a similar tangy flavor. Just ensure it’s at room temperature for easier mixing.
Can I make this Decadent Tuxedo Bar Cake gluten-free?
Very! Simply replace the all-purpose flour with a gluten-free flour blend that measures 1:1. I often use a mix that contains xanthan gum for best results. This will ensure that the cake rises well and retains a delightful texture, so everyone can enjoy this chocolatey masterpiece!

Decadent Tuxedo Bar Cake
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and prepare two 9-inch round cake pans by greasing with butter and dusting with flour.
- In a medium saucepan over medium heat, combine unsalted butter, water, and unsweet dark cocoa powder. Stir continuously for about 3–5 minutes until melted and glossy.
- In a large bowl, whisk together all-purpose flour, light brown sugar, baking soda, fine sea salt, and espresso powder until fully combined.
- Gently fold the cooled chocolate mixture into the dry ingredients until just combined.
- Incorporate buttermilk, eggs, and vanilla extract, stirring gently until smooth.
- Divide the batter between prepared cake pans and bake for 30-35 minutes, or until a toothpick comes out clean.
- Allow cakes to cool in pans for 10 minutes, then turn out onto a wire rack to cool completely.
- Whip heavy cream in a medium bowl until stiff peaks form, then fold in semi-sweet chocolate chips.
- Blend cream cheese, melted white chocolate, confectioners' sugar, unsalted butter, and lemon juice until smooth.
- Layer one cake on a serving plate, spread half of the chocolate mousse over it, and top with a layer of cream cheese frosting. Repeat with the second layer.
- In a saucepan, heat additional chocolate chips, heavy cream, and sunflower oil until melted, then cool slightly.
- Pour the ganache over the assembled cake and decorate with additional frosting, truffles, and cookie wafers.
- Serve and enjoy the decadent layers!

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