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Chocolate Swirl Mousse Bundt Cake

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Sunday dessert just got a major upgrade. This Chocolate Swirl Mousse Bundt Cake is the kind of showstopper that looks incredibly technical but is actually surprisingly simple. Max calls it the "zebra cake" because of the hidden white stripes inside, and honestly, cutting that first slice to reveal the beautiful interior is the best part.

A stunning Chocolate Swirl Mousse Bundt Cake featuring a hidden tunnel of creamy cheesecake mousse inside a moist chocolate sponge. Glazed with rich ganache and topped with chocolate curls.
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Chocolate swirl mousse bundt cake with creamy vanilla center and rich chocolate glaze
Chocolate swirl mousse bundt cake with creamy vanilla center and rich chocolate glaze Save it For Later
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Why You Will Love This Chocolate Swirl Mousse Bundt Cake

You will love this recipe because it combines two of the best desserts in the world: rich chocolate cake and creamy cheesecake mousse. The "mousse" filling is baked right inside the batter, creating a soft, velvety tunnel that contrasts perfectly with the moist chocolate sponge. It looks like a masterpiece from a high-end bakery, especially with that glossy ganache and fresh strawberries, but it is easy enough for a weekend baking project.

How To Make Chocolate Swirl Mousse Bundt Cake

This cake looks complex, but it is really just a layering game. We start by making a simple cocoa-based batter that stays super moist thanks to sour cream. Then, we whip up a quick cream cheese "mousse" filling. The magic happens in the pan: we layer half the batter, spoon in the white filling, and top with the rest of the chocolate. After baking, we drown the whole thing in a silky chocolate ganache and pile on the shavings.

Chocolate Swirl Mousse Bundt Cake Ingredients

The Chocolate Cake

  • 2 cups granulated sugar
  • 1 ¾ cups all-purpose flour
  • ¾ cup unsweetened cocoa powder (good quality)
  • 1 ½ teaspoons baking powder
  • 1 ½ teaspoons baking soda
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup whole milk
  • ½ cup vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup boiling water

The Mousse Filling

  • 8 oz cream cheese; softened
  • ⅓ cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 2 tablespoons all-purpose flour

The Ganache & Garnish

  • 1 cup semi-sweet chocolate chips
  • ½ cup heavy cream
  • Chocolate shavings (use a vegetable peeler on a chocolate bar)
  • Fresh strawberries (for serving)
Ingredients for Chocolate Swirl Mousse Bundt Cake arranged in a 4-panel flat lay on a white marble kitchen counter. Save it For Later

Step by Step Method

Prep the Pan

  • Preheat oven to 350°F (175°C).
  • Grease a 10-inch Bundt pan very thoroughly with butter or baking spray, ensuring you get into every crevice.

Make the Mousse Filling

  • In a medium bowl, beat the softened cream cheese, sugar, egg, vanilla, and flour until smooth and creamy. Set aside.

Mix the Dry Ingredients

  • In a large bowl, whisk together sugar, flour, cocoa, baking powder, baking soda, and salt.

Add the Wet Ingredients

  • Add eggs, milk, oil, and vanilla. Beat on medium speed for 2 minutes.
  • Stir in boiling water by hand (the batter will be thin; this is normal).

Layer the Batter

  • Pour a little less than half of the chocolate batter into the prepared Bundt pan.
  • Spoon the white mousse filling carefully over the center of the batter, trying to keep it away from the edges of the pan.
  • Pour the remaining chocolate batter over the top to cover the filling.

Bake

  • Bake for 50–60 minutes, or until a toothpick inserted into the chocolate part comes out clean (the white center will still be soft).
  • Cool in the pan for 10 minutes, then invert onto a wire rack to cool completely.

Glaze and Decorate

  • Heat heavy cream until hot, pour over chocolate chips, and let sit for 5 minutes. Whisk until smooth.
  • Pour the ganache over the cooled cake.
  • Immediately top with chocolate shavings and serve with fresh strawberries.
Easy chocolate swirl mousse bundt cake with creamy vanilla center and chocolate glaze Save it For Later

MAX’S REACTION

"Wait, how did the white part get inside the brown part? It’s like a magic trick! The middle tastes like cheesecake and the outside is like a brownie. I’m eating all the strawberries too."

What Pairs Well With Chocolate Swirl Mousse Bundt Cake

Since this cake is incredibly rich and dense, it needs something fresh to balance it out. The fresh strawberries shown in the picture are essential—they cut through the heavy chocolate flavor. A hot cup of black coffee or a cold glass of milk is also a non-negotiable sidekick for a slice this decadent.

Chocolate Swirl Mousse Bundt Cake Variations

Peanut Butter Surprise

Swap the vanilla extract in the mousse filling for creamy peanut butter. It creates a "Buckeye" style flavor profile that is absolutely addictive.

Mint Chocolate Chip

Add a teaspoon of peppermint extract and a drop of green food coloring to the mousse filling. It turns the cake into a giant mint-chocolate treat perfect for holidays.

Orange Chocolate

Zest a whole orange into the chocolate batter and garnish the top with candied orange peel instead of strawberries. Orange and chocolate are a classic, sophisticated combo.

White Chocolate Raspberry

Fold fresh raspberries into the white mousse filling before spooning it into the pan. It adds bursts of tart fruitiness inside the creamy center.

Chocolate swirl mousse bundt cake pin showing sliced cake with creamy vanilla swirl and chocolate glaze Save it For Later

Equipment

  • 10-inch Bundt pan (12-cup capacity)
  • Electric hand mixer or stand mixer
  • Mixing bowls
  • Wire cooling rack
  • Vegetable peeler (for making chocolate shavings)
  • Mom Tip: If your Bundt pan is old, grease it and dust it with cocoa powder instead of flour so you don't end up with white flour streaks on your dark cake.

Storage / Make Ahead / Serving Tips

Refrigerator Storage

Because of the cream cheese mousse filling, this cake must be stored in the refrigerator. Keep it in an airtight cake carrier for up to 5 days.

Serving Temperature

Cold cake can be a bit dense. Remove the cake from the fridge about 30 minutes before serving to let the chocolate sponge relax and the mousse soften.

Freezing

This cake freezes surprisingly well! Wrap individual slices in plastic wrap and foil. Thaw them in the fridge overnight when a craving hits.

Top Tips for Best Chocolate Swirl Mousse Bundt Cake

The scariest part of any Bundt cake is the flip. To ensure it releases perfectly, grease every single nook of that pan just before pouring the batter—don't do it too early or the oil slides down. Also, when making the mousse filling, make sure your cream cheese is truly room temperature so you don't get lumpy white bits. Finally, for the shavings on top, use a vegetable peeler on the side of a chocolate bar that has been slightly warmed by your hand; it makes nicer curls than cold chocolate.

Chocolate Swirl Mousse Bundt Cake FAQs

Do I need gelatin for the mousse part?

No. Since this is a baked mousse filling (similar to cheesecake), the egg and flour stabilize it in the oven. You do not need gelatin.

Can I use a box mix for the cake part?

Yes, you can use a high-quality devil's food cake mix. Just add sour cream or pudding mix to ensure it's dense enough to hold the filling.

Why did my filling sink to the bottom?

This happens if the chocolate batter is too thin or the filling is too heavy. Make sure to layer it carefully and don't over-swirl it with a knife, or it will mix in completely.

Can I make this in a regular round pan?

You can, but you won't get the "tunnel" effect. It works best in a Bundt or tube pan where the heat distributes evenly through the center.

A Centerpiece for Chocolate Lovers

There is a reason this cake disappears so fast in our house; it just hits every comfort food note possible. We hope this Chocolate Swirl Mousse Bundt Cake becomes your new go-to for birthdays, holidays, or just spoiling the family on a Tuesday. If you are still in a baking mood, you definitely need to try our Triple Chocolate Cheesecake for maximum indulgence. For something a little more breakfast-friendly, check out our Blueberry Coffee Cake, or grab a quick snack with our Cinnamon Roll Bliss Bars.

Share your Chocolate Swirl Mousse Bundt Cake! Tag us @HannahCooking with #ChocolateMousseBundt; we’re dying to see your version and hear about your homemade kitchen stories!

⭐️ Rate this Chocolate Swirl Mousse Bundt Cake recipe and let us know what twists or ingredients you used!

Looking for other recipes like Chocolate Swirl Mousse Bundt Cake? Try these:

Chocolate swirl mousse bundt cake with creamy vanilla center and rich chocolate glaze Save it For Later

Chocolate Swirl Mousse Bundt Cake

A stunning Chocolate Swirl Mousse Bundt Cake featuring a hidden tunnel of creamy cheesecake mousse inside a moist chocolate sponge. Glazed with rich ganache and topped with chocolate curls.
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Course: Dessert
Cuisine: American
Prep Time: 25 minutes
Cook Time: 55 minutes
Total Time: 1 hour 20 minutes
Servings: 12 people
Calories: 480kcal
Cost: $12

Equipment

  • 1 Bundt pan (10-inch / 12 cup)
  • 1 Mixer (Electric or Stand)
  • 3 Mixing bowls (Various sizes)
  • 1 Wire rack (Cooling)
  • 1 Vegetable peeler (For chocolate curls)

Ingredients

  • 2 cups granulated sugar - Divided use
  • 1 ¾ cups all-purpose flour - Plus 2 tablespoon for filling
  • ¾ cup unsweetened cocoa powder - Sifted
  • 1 ½ teaspoon baking powder - Leavening
  • 1 ½ teaspoon baking soda - Leavening
  • 1 teaspoon salt - Flavor enhancer
  • 3 large eggs - 2 for cake, 1 for filling
  • 1 cup whole milk - For moisture
  • ½ cup vegetable oil - For tender crumb
  • 3 teaspoon vanilla extract - Divided
  • 1 cup boiling water - To bloom cocoa
  • 8 oz cream cheese - Softened
  • 1 cup semi-sweet chocolate chips - For ganache
  • ½ cup heavy cream - For ganache
  • fresh strawberries - Garnish

Instructions 

  • Preheat oven to 350°F and thoroughly grease a 10-inch Bundt pan.
  • Beat cream cheese, ⅓ cup sugar, 1 egg, 1 teaspoon vanilla, and 2 tablespoon flour until smooth.
  • Whisk flour, 2 cups sugar, cocoa, baking soda, baking powder, and salt in a large bowl.
  • Add milk, oil, 2 eggs, and vanilla; beat well, then stir in boiling water.
  • Pour half the batter into the pan, spoon filling into the center, and top with remaining batter.
  • Bake for 50–60 minutes until a toothpick inserted in the cake part comes out clean.
  • Make ganache by pouring hot cream over chocolate chips and whisking until smooth.
  • Pour ganache over cooled cake and top with chocolate shavings and strawberries.

Notes

Ensure the cream cheese is at room temperature to avoid lumps in the filling. Grease the Bundt pan thoroughly right before baking to prevent sticking.

Nutrition

Serving: 130g | Calories: 480kcal (24%) | Carbohydrates: 65g (22%) | Protein: 6g (12%) | Fat: 24g (37%) | Saturated Fat: 12g (75%) | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Cholesterol: 75mg (25%) | Sodium: 310mg (13%) | Potassium: 180mg (5%) | Fiber: 3g (13%) | Sugar: 45g (50%) | Vitamin A: 450IU (9%) | Vitamin C: 5mg (6%) | Calcium: 60mg (6%) | Iron: 2mg (11%)

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