Sourdough Chocolate Cake Recipe is a rich, moist cake that blends natural sourdough starter with deep chocolate flavor and a touch of spiced rum.
My Baking Addiction inspired this version, and I have made it multiple times, adjusting sugar and rum levels to suit taste.
I baked it mostly in bakery style but added my own modifications, like espresso powder for depth. This sourdough chocolate cake recipe yields tender crumb and intense chocolate notes.
I will now show step by step how to make this sourdough chocolate cake recipe, guiding through each stage from mixing to glazing.
Super Moist Sourdough Chocolate Cake Recipe
This super moist sourdough chocolate cake recipe creates a tender, rich cake full of chocolate flavor and subtle tang from the sourdough starter.
Dark cocoa and spiced rum enhance the depth, while brown sugar adds natural sweetness and moisture. The texture stays soft and airy, holding a luscious crumb that soaks up a glossy chocolate rum glaze.
I have made this recipe multiple times, experimenting with espresso powder and adjusting rum to taste. Baking in a standard round pan, the cake turns out bakery style but carries personal touches in flavor and richness.
How To Prepare Sourdough Chocolate Cake Recipe?
To make this Sourdough Chocolate Cake Recipe perfectly, we’ll go through every step carefully. I’ve shared tips, ingredient details, and techniques to help you achieve a moist, rich cake.
The kitchen tools I use make baking easier, but you can create this indulgent chocolate cake using what you already have at home.
How To Prepare Sourdough Chocolate Cake Recipe?
Recipe Overview
Preparation Time: 20 minutes
Cooking Time: 60 minutes
Total Time: 1 hour 20 minutes
Course: Dessert
Cuisine: American
Yield: 12 servings
Kitchen Utensils
- 9-inch cake pan
- Mixing bowls
- Whisk and spatula
- Sifter
- Saucepan for glaze
- Cooling rack
Ingredients
For the Cake:
- 2 cups pastry flour (9–10% protein)
- ¾ cup whole fat buttermilk, room temperature
- 2 teaspoons vanilla extract or vanilla bean paste
- ½ cup unsalted butter
- 1 cup spiced rum
- ¾ teaspoon baking soda
- ½ teaspoon ground cloves
- ¾ cup Dutch-processed cocoa powder
- ¾ teaspoon fine sea salt
- 2 large eggs, room temperature
- 2 teaspoons espresso powder
- 2 teaspoons baking powder
- ½ cup sunflower oil
- ¾ cup dark brown sugar
- ½ cup granulated sugar
For the Chocolate Rum Glaze:
- ⅓ cup spiced rum
- ¼ cup unsweetened cocoa powder
- ½ cup unsalted butter
- 1 cup sugar
- ¼ cup water
- 1 teaspoon salt
- 1 teaspoon vanilla extract
Instructions
1. Preheat and Prepare Pan:
Preheat your oven to 350°F (175°C). Grease a 9-inch cake pan and line with parchment paper.
2. Mix Dry Ingredients:
In a large bowl, sift together 2 cups pastry flour, ¾ cup cocoa powder, 2 teaspoons baking powder, ¾ teaspoon baking soda, ½ teaspoon ground cloves, and ¾ teaspoon salt. Set aside.
3. Combine Wet Ingredients:
In another bowl, whisk together 2 large eggs, ¾ cup dark brown sugar, ½ cup granulated sugar, ½ cup melted butter, ½ cup sunflower oil, ¾ cup buttermilk, 2 teaspoons espresso powder, and 2 teaspoons vanilla extract.
4. Combine Wet and Dry:
Gradually fold the dry ingredients into the wet mixture until smooth. Slowly add 1 cup spiced rum and mix until fully incorporated. The batter should be glossy and pourable.
5. Bake the Cake:
Pour the batter into the prepared pan and smooth the top. Bake in preheated oven for 50–60 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool in the pan for 15 minutes.
6. Prepare the Glaze:
In a saucepan over medium heat, combine 1 cup sugar, ½ cup butter, ¼ cup water, ¼ cup cocoa powder, and 1 teaspoon salt. Stir constantly until sugar dissolves and mixture comes to a gentle boil. Remove from heat and stir in ⅓ cup spiced rum and 1 teaspoon vanilla extract. Let cool slightly.
7. Glaze the Cake:
Place the cake on a cooling rack over a tray to catch drips. Pour the warm glaze evenly over the cake, allowing it to soak in and coat the sides.
8. Serve:
Allow the cake to rest for 20–30 minutes so the glaze sets. Slice and serve at room temperature. Pairs beautifully with whipped cream or vanilla ice cream.
Nutrition Facts Of Sourdough Chocolate Cake Recipe
| Nutrition | Amounts |
|---|---|
| Calories | 410 kcal |
| Carbohydrates | 55 g |
| Protein | 5 g |
| Fat | 18 g |
| Saturated Fat | 9 g |
| Sugar | 38 g |
Why My Recipe Works
My Sourdough Chocolate Cake Recipe works because the sourdough starter naturally leavens the batter while adding a subtle tang that enhances the chocolate flavor.
The combination of butter, eggs, and sunflower oil ensures a tender, moist crumb that holds its shape. Cocoa powder and espresso powder intensify the chocolate taste, while dark brown sugar adds depth and caramel notes.
Baking soda and baking powder react with the acidity in the buttermilk and starter to create lift, giving the cake a soft, airy texture. The chocolate rum glaze finishes the cake, soaking in and adding richness and shine.
Why This Recipe Is A Must Try?
This Sourdough Chocolate Cake Recipe is a must try because it delivers a rich, moist, and flavorful cake unlike ordinary chocolate cakes.
The sourdough starter adds a subtle tang that balances the sweetness and intensifies the chocolate taste. The spiced rum glaze enhances the flavor while keeping the cake soft and tender.
It combines classic baking techniques with small personal tweaks, creating a bakery-style dessert at home. Every slice has depth, texture, and indulgence, making it a unique dessert that stands out on any table and impresses anyone who tries it.
Professional Baking Tips
1. Make sure all ingredients are at room temperature before mixing. This helps the batter come together smoothly and prevents curdling.
2. Measure flour correctly by spooning it into the cup and leveling it off. Too much flour can make the cake dry.
3. Sift cocoa powder, baking powder, and baking soda together to remove lumps and ensure even distribution.
4. Beat butter and sugars well until creamy and slightly fluffy. This traps air and improves the texture.
5. Alternate adding dry ingredients and buttermilk to the batter. Start and end with dry ingredients for the best consistency.
6. Let the cake cool slightly before adding glaze. Pouring glaze too early can make the cake soggy, while waiting allows it to absorb evenly.
My Favorite Ways To Serve It Up
My favorite ways to serve this Sourdough Chocolate Cake Recipe start with simple slices on a dessert plate, letting the chocolate rum glaze shine.
Adding a scoop of vanilla ice cream or lightly whipped cream complements the richness of the cake. Fresh berries or a drizzle of extra spiced rum glaze bring brightness and extra flavor.
For a more indulgent treat, serve slightly warmed slices with a sprinkle of chopped nuts or shaved chocolate on top. A cup of strong coffee or espresso pairs perfectly, enhancing the deep chocolate and rum notes.
Delicious Variations
Nutty Chocolate Sourdough Cake – Toasted nuts such as walnuts, pecans, or hazelnuts add a crunchy texture and a warm, nutty flavor that complements the rich chocolate. The nuts can be folded directly into the batter or sprinkled on top before baking for an extra layer of texture.
Chocolate Orange Sourdough Cake – Adding fresh orange zest to the batter gives a bright citrus aroma, while a splash of orange liqueur or juice in the glaze enhances the chocolate’s richness and balances sweetness with tangy notes.
Spiced Chocolate Sourdough Cake – Cinnamon, nutmeg, and a tiny pinch of cayenne create a warm, fragrant spice profile that enhances the chocolate without overwhelming it. This variation feels cozy and slightly festive, perfect for cooler months.
Mocha Sourdough Cake – Boosting espresso powder in both the batter and glaze produces a deep coffee-chocolate flavor. This variation intensifies the cocoa taste and creates a sophisticated dessert that pairs wonderfully with coffee drinks.
Fruit-Filled Chocolate Sourdough Cake – Folding in dried cherries, cranberries, or chopped dates adds subtle sweetness and chewy bursts throughout the cake. The fruit adds visual appeal and a natural contrast to the rich chocolate, giving a more complex flavor experience.
Cake Storage
Store the Sourdough Chocolate Cake Recipe in an airtight container at room temperature for up to 3 days to keep it moist.
For longer storage, wrap the cooled cake tightly in plastic wrap and then in foil, and place it in the refrigerator for up to one week.
To freeze, wrap the cake in plastic wrap and then in foil, or place it in a freezer-safe container. Thaw frozen cake in the refrigerator overnight, then bring to room temperature before serving.
FAQs About Sourdough Chocolate Cake Recipe
Can I use active sourdough starter or discard?
Both work well. Active starter gives slightly more lift, while discard adds flavor and moisture without extra rise.
Does the cake taste sour?
No. The sourdough adds a mild tang that enhances the chocolate flavor rather than making the cake taste sour.
Can I make this cake without rum?
Yes. Replace the rum with milk or brewed coffee for a non-alcoholic version that still tastes rich and deep.
Why is my cake dense?
Over mixing the batter or adding too much flour can result in a heavy texture. Measure carefully and mix gently.
Can I make it ahead of time?
Yes. The flavor improves the next day as the glaze settles and the chocolate notes deepen.
Conclusion
This delicious Sourdough Chocolate Cake Recipe is one that everyone enjoys and always receives compliments.
Every time I make it for serving, the cake comes out moist, rich, and full of chocolate and rum flavor, making it a standout dessert.
I have made this Sourdough Chocolate Cake Recipe many times, and each experience is just as enjoyable, seeing it disappear quickly at the table.
The combination of tender crumb, deep chocolate taste, and glossy glaze brings joy to anyone who tries it. I hope you make this recipe and enjoy it as much as I do.
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Sourdough Chocolate Cake Recipe
Equipment
- 9-inch cake pan
- Mixing bowls
- Whisk and spatula
- Sifter
- Saucepan for glaze
- Cooling rack
Ingredients
For the Cake:
- 2 cups pastry flour 9–10% protein
- ¾ cup whole fat buttermilk room temperature
- 2 teaspoons vanilla extract or vanilla bean paste
- ½ cup unsalted butter
- 1 cup spiced rum
- ¾ teaspoon baking soda
- ½ teaspoon ground cloves
- ¾ cup Dutch-processed cocoa powder
- ¾ teaspoon fine sea salt
- 2 large eggs room temperature
- 2 teaspoons espresso powder
- 2 teaspoons baking powder
- ½ cup sunflower oil
- ¾ cup dark brown sugar
- ½ cup granulated sugar
For the Chocolate Rum Glaze:
- ⅓ cup spiced rum
- ¼ cup unsweetened cocoa powder
- ½ cup unsalted butter
- 1 cup sugar
- ¼ cup water
- 1 teaspoon salt
- 1 teaspoon vanilla extract
Instructions
Preheat and Prepare Pan:
- Preheat your oven to 350°F (175°C). Grease a 9-inch cake pan and line with parchment paper.
Mix Dry Ingredients:
- In a large bowl, sift together 2 cups pastry flour, ¾ cup cocoa powder, 2 teaspoons baking powder, ¾ teaspoon baking soda, ½ teaspoon ground cloves, and ¾ teaspoon salt. Set aside.
Combine Wet Ingredients:
- In another bowl, whisk together 2 large eggs, ¾ cup dark brown sugar, ½ cup granulated sugar, ½ cup melted butter, ½ cup sunflower oil, ¾ cup buttermilk, 2 teaspoons espresso powder, and 2 teaspoons vanilla extract.
Combine Wet and Dry:
- Gradually fold the dry ingredients into the wet mixture until smooth. Slowly add 1 cup spiced rum and mix until fully incorporated. The batter should be glossy and pourable.
Bake the Cake:
- Pour the batter into the prepared pan and smooth the top. Bake in preheated oven for 50–60 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool in the pan for 15 minutes.
Prepare the Glaze:
- In a saucepan over medium heat, combine 1 cup sugar, ½ cup butter, ¼ cup water, ¼ cup cocoa powder, and 1 teaspoon salt. Stir constantly until sugar dissolves and mixture comes to a gentle boil. Remove from heat and stir in ⅓ cup spiced rum and 1 teaspoon vanilla extract. Let cool slightly.
Glaze the Cake:
- Place the cake on a cooling rack over a tray to catch drips. Pour the warm glaze evenly over the cake, allowing it to soak in and coat the sides.
Serve:
- Allow the cake to rest for 20–30 minutes so the glaze sets. Slice and serve at room temperature. Pairs beautifully with whipped cream or vanilla ice cream.
Notes
Nutrition Facts
Calories: 410 kcal | Carbohydrates: 55 g | Protein: 5 g | Fat: 18 g | Saturated Fat: 9 g | Sugar: 38 gI’m Eliana Emerson, a former fashion designer turned full-time foodie with over five years of experience in the kitchen. My passion for creativity didn’t stop at fashion it simply found a new home in cooking. I love discovering new recipes, experimenting with flavors, and adding an artistic touch to my favorite dishes. The recipes I share are inspired by family traditions and Southern classics, many reimagined as healthier options without sacrificing flavor.