Marmorkuchen is a moist chocolate and vanilla marble bundt cake with a chocolate ganache glaze – perfect for any time of day!
Marmorkuchen has long been one of my favorite cakes. It seems like the kind of cake you can eat anytime, not just for a birthday or celebration. Eat it for breakfast, with your coffee, or for dessert – my Oma has it sitting out at every meal!
Marmorkuchen is the German name for a marble cake – this one specifically is baked in a bundt pan. These cakes can often be dry, but with the addition of sour cream this bundt cake is anything but!
How to make German Marble Cake moist?
To make marmorkuchen moist, it comes down to two things. The first is to use sour cream in the batter, this helps to add richness and moisture to the batter. The second is to not over bake it. After 45 minutes check the cake, it should be golden brown and a toothpick should come out clean when inserted in the center.
Tips for Making Marmorkuchen
- Prep the ingredients for the chocolate batter before starting the rest of the cake batter.
- Make sure all the ingredients are at room temperature – this will help get a smooth and fluffy cake batter.
- To make sure the bundt cake comes out of the pan cleanly – spray the pan with a baking spray that also has flour in it, or grease the pan and then coat it with flour. Either of these methods will help to cleanly turn the marmorkuchen out.
- Let the cake cool for 10 minutes before turning it out. This will help it to hold together rather than split, or fall apart.
- All Purpose Flour: Any all purpose flour will work for this marmorkuchen! I have not yet tried any other flours with this recipe.
- Baking Soda & Baking Powder: These both help make the cake rise – make sure to check the expiration date! If they are expired, they won’t be very effective.
- Cocoa Powder: Both dutch processed and natural cocoa powder will work here.
- Vanilla Extract: Vanilla adds flavor and enhances the chocolate.
- Eggs: I use standard large eggs from the store.
- Sugar: This marmorkuchen loaf only uses granulated sugar in the cake batter.
- Sour Cream: Sour cream adds richness and moisture to the cake. You can also use full fat greek yogurt.
- Butter: Butter adds moisture and richness to this cake.
- Dark Chocolate: The dark chocolate is for the ganache glaze as well as the chocolate cake portion. Make sure that it is at least semi-sweet or dark chocolate rather than milk chocolate.
- Milk: Any milk or non-dairy milk will work for this recipe.
- Heavy Cream: This can be either heavy cream or heavy whipping cream – it is melted with the dark chocolate to create the ganache glaze.
How to make Marmorkuchen
- Preheat the oven to 350 F or 325 F if convection.
Prepare the Chocolate Additions
- Finely chop the semi-sweet chocolate, place in a microwave and heat on short intervals – stirring frequently – until the chocolate is fully melted. Set aside to cool while you prep the rest of the batter.
- In a small bowl, stir together the cocoa powder and milk and set aside.
Make the cake batter
- In the bowl of a stand mixer, whisk together the flour, baking powder, and baking soda. Then add in the remaining ingredients. Using a paddle attachment beat the ingredients on high for two minutes until light and fluffy.
- Pour half of the batter into a second mixing bowl. Then add the chocolate additions into the bowl of the stand mixer with the remaining cake batter. Mix again until fully combined – scrape the sides and bottom of the bowl as needed.
- Prepare a bundt pan. Then using a quarter cup measure, scoop in 4 scoops of the vanilla batter (evenly spaced) around the pan. Then, add in 4, 1/4 cup scoops of the chocolate batter in between the vanilla scoops.
Bake the Marmorkuchen
- Add more chocolate scoops on top of the vanilla and add vanilla scoops on top of the chocolate. Smooth out the batter and bake on the rack, just below center, in the oven for 45-50 min. Rotate the cake halfway through to prevent uneven browning.
- When the cake is finished baking, check it by sticking a toothpick into the cake. If the toothpick comes out clean, the cake is finished.
- Remove the cake from the oven and leave it to cool for 10 minutes before flipping it out.
Chocolate Ganache Glaze
- Finely chop the chocolate and place in a heat proof bowl.
- Heat the heavy cream until it is almost boiling, pour the hot cream over the chopped chocolate and let sit for one minute before whisking to combine.
- If the ganache seems too thin, leave it to cool for a few minutes before glazing the cake.
Looking for more Chocolate Cake Recipes?
- Stand Mixer
- Bundt Pan
- 300 grams ap flour
- 1 tsp baking soda
- 1 tsp baking powder
- 300 grams granulated sugar
- 1 tsp vanilla extract
- 4 eggs room temperature
- 250 grams butter softened
- 200 ml sour cream room temperature
- 1.5 tbsp cocoa powder
- 2 tbsp milk
- 75 grams semi-sweet chocolate melted and cooled
- 4 oz semi-sweet chocolate
- 6 oz heavy cream
Make the Cake batter
- Place a rack in the oven just below the center.
- Preheat the oven to 350 F (or 325 F if baking convection).
- Melt the 75 grams of semi sweet chocolate and set aside to cool while you prepare the rest of the batter.
- In a small bowl stir together the milk and cocoa powder.
- In the bowl of a stand mixer, whisk together the flour, baking soda and baking powder.
- Add in the sugar, eggs, butter, vanilla extract, and sour cream. Using the paddle attachment, on high speed, beat together all the ingredients for 2 minutes – until light and fluffy.
- Scrape down the sides of the bowl as needed.
- Pour half of the batter into a medium bowl. Then add the melted chocolate and cocoa powder & milk mixture to the batter that is still in the stand mixer bowl.
- Beat on high once more to combine all the ingredients. Scrape the sides of the bowl and mix again, just briefly.
Bake the Cake
- Grease a bundt pan with a baking spray. I prefer the ones with flour in them because they tend to work better to prevent the cake from sticking.
- Using a 1/4 cup scoop – scoop about 4 scoops of the vanilla batter into the bundt pan, evenly spaced.
- Then scoop 4 scoops of chocolate batter and place them in between the vanilla scoops.
- For the next layers, repeat these steps but alternate so that chocolate is stacked on top of vanilla and vice versa.
- Once all the batter has been used up, smooth out the top with a rubber spatula. Bake on the pre-placed rack for 45-50 minutes, or until a toothpick inserted in the center of the cake comes out clean. After 30 minutes, rotate the cake 180 degrees to ensure even browning.
- Once the cake is finished baking, let it cool for 10 minutes before trying to flip it out of the pan.
- When you are ready to turn it out of the pan, place a cooling rack over the pan. Hold onto the bundt pan and the cooling rack and flip in one smooth motion. You should hear the cake gently fall out of the pan and onto the cooling rack.
- Leave the cake to cool fully before glazing it.
Chocolate Ganache Glaze
- Finely chop a 4 oz bar of semi-sweet chocolate into small shards and add it to a heat safe bowl.
- Heat the heavy cream in a pot, just until it comes to a boil – you can also microwave it.
- Once the cream is hot, immediately, pour it over the chopped chocolate.
- Let the mixture sit for 1 minute, then whisk the chocolate and cream together until they are one smooth glaze.
- If the ganache seems too runny, just let it sit out at room temperature (stirring occasionally) for 10 minutes. This will help cool it down and thicken before pouring it on a cake.