Chocolate Buttermilk Bundt Cake

There’s something incredibly comforting about the aroma of a chocolate cake baking in the oven. For me, it’s a scent that instantly transports me back to my childhood kitchen, watching my grandmother effortlessly whip up a dessert that felt like a special occasion every single time. This Decadent Chocolate Buttermilk Bundt Cake is my loving tribute to those memories—a recipe I’ve tweaked over the years to achieve what I believe is the perfect balance of rich chocolate flavor and an unbelievably moist, tender crumb.

It’s the kind of cake that makes you close your eyes with the first bite. The secret lies in a few key ingredients that work together in perfect harmony. While it has the impressive look of a bakery-style dessert, it’s surprisingly straightforward to make. It’s my go-to for everything from family gatherings to a simple weekend treat. Every time I bake it, I’m reminded of how a simple cake can create such wonderful moments, much like my festive Cranberry Upside-Down Cake does during the holidays. This Chocolate Buttermilk Bundt Cake isn’t just a recipe; it’s a slice of pure joy.

What Makes This Chocolate Buttermilk Bundt Cake So Special?

What I adore most about this Chocolate Buttermilk Bundt Cake is how it delivers such a deep, luxurious flavor with minimal fuss. With a prep time of just 20 minutes and a cook time of 55 minutes, it’s an impressive dessert that doesn’t require me to spend all day in the kitchen. The combination of buttermilk and vegetable oil creates a wonderfully tender crumb that stays moist for days, while the hot coffee blooms the Dutch-processed cocoa powder, intensifying that rich chocolate taste I crave.

Ingredient Notes for Chocolate Buttermilk Bundt Cake

I always insist on using unsweetened Dutch-processed cocoa powder for its smooth, less acidic flavor that gives this cake its signature dark color. The buttermilk is non-negotiable for me; its tanginess balances the sweetness and its acidity tenderizes the flour. For a different kind of rich, comforting dessert, I sometimes turn to my Creamy Pumpkin Custard.

Antonio

Decadent Chocolate Buttermilk Bundt Cake

This Decadent Chocolate Buttermilk Bundt Cake is incredibly moist and rich, with a deep chocolate flavor enhanced by coffee and a velvety chocolate glaze. It's the perfect make-ahead dessert for Thanksgiving or any special occasion.

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Prep Time 20 minutes mins

Cook Time 55 minutes mins

Total Time 1 hour hr 15 minutes mins

Servings: 16 servings

Course: Dessert

Cuisine: American

Calories: 465

Ingredients Equipment Method Notes

Ingredients

  

For the Chocolate Buttermilk Cake

• 2 cups all-purpose flour spooned and leveled
• 3/4 cup unsweetened Dutch-processed cocoa powder sifted if lumpy
• 1 1/2 tsp baking soda
• 1 tsp baking powder
• 1 tsp fine sea salt
• 1 cup unsalted butter softened to room temperature (2 sticks)
• 1/2 cup vegetable oil or other neutral oil
• 2 cups granulated sugar
• 3 large eggs room temperature
• 2 tsp pure vanilla extract
• 1 cup buttermilk room temperature
• 1 cup hot brewed coffee or 1 cup hot water mixed with 2 tsp instant espresso powder

For the Chocolate Glaze

• 1 cup semi-sweet chocolate chips or finely chopped chocolate bar
• 4 tbsp unsalted butter cut into pieces
• 2 tbsp heavy cream or whole milk
• 1 tbsp light corn syrup optional, for shine
• 1/2 tsp pure vanilla extract

Equipment

• 10 or 12-cup Bundt Pan
• Large mixing bowl
• Medium Mixing Bowl
• Electric mixer (stand or hand-held)
• Whisk
• Silicone spatula
• Wire cooling rack
• Small saucepan

Method

 

Prepare the Cake Batter

• Preheat your oven to 350°F (175°C). Generously grease a 10 or 12-cup Bundt pan with butter or baking spray. Dust the inside with cocoa powder (not flour, to avoid a white coating), tapping out any excess. Set aside.
• In a medium bowl, whisk together the all-purpose flour, cocoa powder, baking soda, baking powder, and salt. Set aside.
• In a large bowl using a stand mixer with a paddle attachment or a hand mixer, beat the softened butter, vegetable oil, and granulated sugar on medium-high speed until light and fluffy, about 3-4 minutes.
• Add the eggs one at a time, beating well after each addition and scraping down the sides of the bowl as needed. Beat in the vanilla extract.
• Reduce the mixer speed to low. Add the dry ingredients in three additions, alternating with the buttermilk in two additions, beginning and ending with the dry ingredients. Mix just until combined; do not overmix.
• With the mixer still on low, slowly and carefully pour in the hot coffee. The batter will be very thin. Mix just until the coffee is incorporated, about 30 seconds. Scrape the bottom and sides of the bowl to ensure everything is combined.

Bake and Cool the Cake

• Pour the thin batter into your prepared Bundt pan. Bake for 50-60 minutes, or until a long wooden skewer or cake tester inserted into the center of the cake comes out clean or with a few moist crumbs attached.
• Place the pan on a wire rack and let the cake cool in the pan for exactly 15 minutes. This is a crucial step to prevent it from breaking.
• After 15 minutes, carefully invert the cake onto the wire rack. Lift the pan off and let the cake cool completely before glazing, at least 2 hours.

Make the Glaze and Finish

• Once the cake is completely cool, prepare the glaze. In a small, heatproof bowl set over a saucepan of simmering water (or in the microwave in 30-second intervals), melt the chocolate chips, butter, heavy cream, and corn syrup. Stir until completely smooth and glossy.
• Remove from heat and stir in the vanilla extract. Let the glaze cool and thicken slightly for about 10-15 minutes, stirring occasionally.
• Slowly pour or spoon the glaze over the top of the cooled Bundt cake, allowing it to drip down the sides. Let the glaze set for at least 30 minutes before slicing and serving.

Notes

Pan Preparation: Do not skip the step of greasing and dusting the Bundt pan with cocoa powder. This is the key to ensuring the cake releases cleanly.
Room Temperature Ingredients: Using room temperature butter, eggs, and buttermilk is essential for a smooth, well-emulsified batter and a tender final crumb.
Thin Batter: Don't be alarmed by how thin the batter is after adding the hot coffee. This is normal and is what creates the cake's signature moist texture.
Storage: Store the cake covered at room temperature for up to 4 days.

My Approach to Making Chocolate Buttermilk Bundt Cake

Bringing this beautiful cake to life is a process I truly enjoy. I start by preparing the cake batter, taking my time to cream the butter, oil, and sugar until it’s light and fluffy—this step is my secret to a perfect texture. Mixing the dry and wet ingredients just until they come together is key to keeping it tender. Once it’s baked and cooled, I make the simple but luscious chocolate glaze. Draping that glossy glaze over the cooled Chocolate Buttermilk Bundt Cake is my favorite part.

My Tips for the Perfect Outcome

• Room Temperature Ingredients: I always let my eggs and buttermilk sit out for about 30 minutes. This helps the batter mix together evenly.
• Don’t Overmix: I mix the flour mixture in just until it’s combined. Overmixing can lead to a tough, dense cake.
• Grease Generously: I make sure to grease and flour every single nook and cranny of my bundt pan to ensure the cake releases cleanly.

How I Serve and Store This Dish

My favorite way to serve this cake is slightly warm, with a simple dusting of powdered sugar or a generous dollop of freshly whipped cream. The richness of the chocolate pairs beautifully with tart berries like raspberries. To store it, I keep it in an airtight container at room temperature. It stays perfectly moist for up to three days, making it a wonderful treat to have on hand. The glaze will set, but the cake’s texture remains absolutely divine.

Can I use regular cocoa powder instead of Dutch-processed?

You can, but I highly recommend Dutch-processed for this Chocolate Buttermilk Bundt Cake. It has a smoother, more intense chocolate flavor and gives the cake a darker, richer color. Regular cocoa powder is more acidic and will create a slightly lighter cake with a different flavor profile.

What if I don’t have buttermilk?

If you’re in a pinch, you can easily make a substitute at home! I just add one tablespoon of white vinegar or lemon juice to a measuring cup, then add enough whole milk to reach the one-cup line. Let it sit for about 5-10 minutes until it curdles slightly, and it’s ready to use.

Can this Chocolate Buttermilk Bundt Cake be frozen?

Absolutely! I often bake one to have on hand for later. For the best results, I recommend freezing the cake without the glaze. Once it has cooled completely, wrap it tightly in plastic wrap and then in aluminum foil. It will keep beautifully in the freezer for up to three months. Just thaw it at room temperature before glazing.

Why did my bundt cake turn out dry?

The most common reason for a dry cake is overbaking. Every oven is a little different, so I always start checking for doneness a few minutes before the recipe suggests. A wooden skewer inserted into the center should come out with a few moist crumbs attached, but no wet batter.

This recipe holds a special place in my heart, and I truly hope this Chocolate Buttermilk Bundt Cake brings as much joy to your table as it does to mine. If you try it, I’d absolutely love to hear what you think and see your creations in the comments below!

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