Blackberry Pound Cake
This Blackberry Pound Cake is one of my older recipes that I’ve completely revamped. It’s incredibly moist, with a rich, tender crumb, a swirl of homemade blackberry jam, and a luscious blackberry ganache on top that’s so good you’ll want to eat it by the spoonful. Plus it’s incredibly stunning! You will steal the show at your next spring brunch!
What makes this different from a lot of fruit-based pound cakes is how the flavor is built. Instead of relying on fresh berries alone, I use a reduced jam for intensity, then carry that into the ganache as well.
It reminds me a bit of the way I approach flavor in my blackberry cheesecake or blueberry cake—layering instead of relying on one element.
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You’re going to love this because…
- The crumb is dense but still soft and moist
- The blackberry flavor is concentrated and layered
- The jam swirl stays defined without sinking too much
- The ganache adds richness without being overly sweet
- It holds well for a couple of days without drying out
Let’s talk about the pan!
Sometimes all you need to make a beautiful dessert is the right hardware. That’s why I used this pan from Bake from Scratch. It makes the perfect creases and crevices that make this pound cake really stand out. I just got this one, and I LOVE it!
Key Ingredients & Why I Use Them
Blackberries: I cook them down into a jam instead of folding them directly into the batter. I’ve found this gives much better flavor and avoids excess moisture.
Butter + oil: I use both. Butter for flavor, oil for moisture. This combination keeps the cake from drying out over time.
Cake flour: I prefer cake flour here because it gives a finer, more tender crumb while still holding structure for a bundt cake. I like to use cake flour in all of my bundts, like my strawberry bundt cake or my lime bundt cake.
Buttermilk: Adds moisture and just a bit of tang, which helps balance the sweetness.
White chocolate (for the ganache): I use real white chocolate bars, not chips. It melts smoother and gives a much better texture.
How to Make Blackberry Pound Cake
The full recipe is down below in the recipe card, but I want to walk through it with you step by step so you get the most beautiful cake ever!
Step 1: Make the blackberry jam
Add the blackberries, sugar, and lemon juice to a medium saucepan. Place it over medium heat and bring it to a boil, stirring occasionally to help the berries break down. Once it starts bubbling, reduce the heat to medium-low and continue cooking for about 25 to 30 minutes.
As it cooks, I keep a close eye on the texture. The mixture should gradually thicken and reduce. If it starts bubbling too aggressively or sticking to the bottom of the pan, I lower the heat and stir more frequently. If it looks like it’s catching or becoming too thick too quickly, I add a small splash of water and continue cooking.
Once the jam is thick and reduced, I strain out about ¼ cup of the liquid without the berries and set that aside. This will be used later for the ganache. The remaining jam, with the berries, gets transferred to a bowl. I cover it with plastic wrap directly touching the surface and let it cool completely before using. This step matters—warm jam will melt into the batter instead of staying defined.
Step 2: Prepare the batter
Preheat the oven to 325ºF (163ºC). Grease a 12-cup bundt pan thoroughly with butter, making sure to get into every crevice, then dust it with flour and tap out the excess. I don’t rush this step because bundt cakes are very prone to sticking.
In a medium bowl, whisk together the cake flour, baking soda, baking powder, and salt. Set this aside.
In a large bowl, beat the butter for about 30 seconds just to loosen it. Add the sugar and beat for about 2 minutes, until the mixture looks lighter and slightly fluffy. Then add the oil and continue beating for another 3 minutes. This step helps build structure and gives the cake its final texture.
Step 3: Add the eggs
Add the eggs one at a time, mixing well after each addition and scraping down the sides of the bowl as needed. I usually add the vanilla along with the last egg.
Step 4: Add the dry ingredients and buttermilk
Now begin adding the dry ingredients in three additions, alternating with the buttermilk. Start with the dry ingredients, then add some buttermilk, and continue alternating, ending with the dry ingredients.
Step 5: Continue mixing
Mix on low speed just until everything is combined. I stop mixing as soon as I don’t see streaks of flour—overmixing at this stage will make the cake dense in a heavy way instead of tender. You want the batter to be light and fluffy.
Step 6: Assemble the cake
Pour almost all of the batter into the prepared bundt pan and smooth the top. I reserve about ½ cup of batter to use later.
Spoon the cooled blackberry jam over the batter, keeping it mostly in the center and away from the edges of the pan. This helps prevent sticking and keeps the swirl where it should be.
Step 7: Top off and Bake
Then add the remaining batter on top and gently spread it to cover the jam.
As the cake bakes, the jam will naturally sink slightly into the batter, creating that layered effect inside the cake. That’s why I don’t mix it in—I let it settle on its own.
Transfer the cake to the oven.
Step 8: Pay attention to the bake
Bake for 55 to 70 minutes. This is the most important part of the recipe. Because the cake is so thick, it can be difficult to tell when it’s fully baked just by looking at it.
I always start checking at around 50 minutes by inserting a toothpick into the center. Then I continue checking every 5 to 10 minutes after that.
The first time I tested this cake, I baked it for 50 minutes, and it looked completely done, but the center still needed more time. The second time, I baked it for 70 minutes, and it came out slightly dry. For my oven, 65 minutes ended up being the sweet spot. My oven runs a bit cool and fluctuates, so yours may be different.
If you’re using a convection oven, the bake time will likely be shorter. I rely on the toothpick test more than the clock here. It should come out clean or with just a few moist crumbs.
Overbaking will dry the cake out, so it’s worth checking carefully.
Step 9: Cool
Once baked, remove the cake from the oven and let it cool in the pan for about 15 to 20 minutes. Then carefully invert it onto a wire rack and let it cool completely before adding the ganache.
Step 10: Make the blackberry ganache
Place the chopped white chocolate in a heatproof bowl. In a microwave-safe measuring cup, combine the reserved blackberry liquid with 2 tablespoons of heavy cream. Heat it in short bursts of 15 to 20 seconds, stirring in between, until the mixture is smooth and just starting to steam. I make sure not to let it boil.
Pour the hot mixture over the white chocolate and let it sit undisturbed for about one minute. Then gently stir until the chocolate is fully melted and the ganache is smooth.
If the ganache feels too thick, I add more warm cream a teaspoon at a time until it reaches a pourable consistency. If it looks separated or greasy, I gently warm a bit more cream and slowly mix it in until it comes back together and turns glossy again. Let the ganache cool for about 30 minutes before using. It should thicken slightly but still be easy to spread or pour.
Step 11: Finish!
Once the cake is completely cool, spread the ganache over the top, letting it drip naturally down the sides. Finish with fresh blackberries in the sweet little pockets if desired.
Expert Tips
This is where most people run into issues with this cake, especially with the bake time.
- Baking: The most important thing is not overbaking or underbaking. Because it’s such a thick cake, it can look done on the outside while still needing more time in the center. I always start checking early and rely on a toothpick instead of the clock.
- Keep the Blackberry Jam centered: If it spreads too close to the edges, it can stick to the pan or affect how the cake releases.
- Don’t overmix: Pound cakes are very delicate, so I always stop mixing the batter as soon as it comes together. Overmixing will make the crumb tight and heavy instead of soft and tender.
⭐ Sugar Syrup Trick
This is helpful if you think you may have slightly overbaked the cake, or if you simply prefer a very moist crumb.
Bring 100 grams of sugar and 100 grams of water to a boil, then let it cool. About 10 minutes after the cake comes out of the oven, poke holes in the top with a fork and pour the syrup over. Let the cake sit in the pan for another 40 minutes before inverting.
Variations
You can substitute the blackberries with raspberries or even a mix of berries depending on what you have on hand. Frozen berries also work well for the jam, which makes this recipe easy to make year-round.
If you don’t want to make the jam from scratch, store-bought jam works just fine. You’ll need about 1½ cups for the swirl and a few tablespoons for the ganache.
For a simpler version, you can skip the ganache entirely and dust the cake with powdered sugar. And if you want a slightly brighter flavor, adding a bit of lemon zest to the batter works really well here. Or if you want to be true to my original recipes, try frosting it with chocolate frosting!
Then, simply puree a handful of blackberries, and strain them, to remove the seeds. And mix some of the juice obtained with the cream cheese frosting.
Storage
I keep the cake covered at room temperature for up to 2 days. After that, I move it to the fridge, where it keeps well for up to 5 days.
Before serving, I always let it come back to room temperature. The texture softens and the flavors come through much better.
FAQ
Yes, they work very well for the jam. No need to thaw first.
It was most likely overbaked. This cake needs careful timing, and even a few extra minutes can make a difference.
Yes, and I actually think it tastes better the next day once everything settles.
You can, but I’ve found that using both butter and oil gives the best balance of flavor and moisture.
More recipes you might like
If you enjoyed this cake, you might also like my cream cheese pound cake, which has a similar soft crumb but a tangier flavor. My strawberry shortcake is another favorite if you like layered fruit desserts with a richer texture. And if you’re in the mood for something a little different, the blackberry pavlovas or blackberry cobbler are great options—they use a similar approach to building flavor, just in a different form!
Final Thoughts
If you make this cake, I’d love to hear how it turned out for you. You can leave a comment below or tag me on Instagram so I can see your version.
Blackberry Pound Cake
Ingredients
Blackberry Jam
- 4 cups blackberries
- ¾ cup sugar 150g
- 2 tbsp lemon juice
Blackberry Pound Cake
- 3 cups cake flour 357g
- ½ tsp baking soda
- ¾ tsp baking powder
- ½ tsp salt
- 1 cup butter, softened 227g
- ⅓ cup oil 80ml
- 2¼ cups sugar 450g
- 6 large eggs, room temperature
- 1 tsp vanilla extract
- ½ cup buttermilk 120ml
Blackberry Ganache
- 1 cup chopped white chocolate 170g
- 3 tbsp blackberry jam
- 2-4 tbsp heavy cream
Instructions
Blackberry Jam
- Add the blackberries, sugar, and lemon juice to a medium saucepan. Bring to a boil and reduce the heat.
- Cook over medium-low heat, stirring frequently, for about 25–30 minutes, until the mixture breaks down and thickens.
- If it starts bubbling too aggressively or thickening too quickly, reduce the heat. If it looks like it’s sticking or burning, add a small splash of water and continue stirring.
- Once thick and reduced, strain out ¼ cup of the liquid (without the berries) and set it aside. You’ll use this for the ganache.
- Pour the remaining jam with the berries in a bowl and cover with plastic wrap. Let it cool down completely, or make ahead. You’ll swirl this jam with the cake batter before baking.
Blackberry Pound Cake
- Preheat the oven to 325ºF (163ºC). Grease a 12-cup bundt pan with butter, then dust with flour, tapping out the excess. Make sure to grease it well, each crevice should be covered with butter and flour.
- In a medium bowl, whisk together the cake flour, baking soda, baking powder, and salt. Set aside.
- In a large bowl, beat the butter for 30 seconds. Add the sugar. Beat for two minutes. Add the oil and beat for another 3 minutes.
- Add the eggs one at a time, mixing well after each addition and scraping down the sides of the bowl as needed.
- You can add the vanilla in along with the final egg.
- Add the dry ingredients in three additions, alternating with the buttermilk. Begin and end with the dry ingredients. Mix on low speed just until combine. Do not overmix.
- Pour almost the whole batter into the prepared bundt pan and smooth the top. Reserve about ½ cup of it.
- Top with the Blackberry Jam, making sure to keep it in the center, away from the edges. Then top with the remaining batter. Spread it to cover the jam. The jam will sink as the cake bakes, which is why you have to put it almost on top of the cake, and just a little batter over it.
- Bake for 55–70 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs.
- Over baking can cause the cake to be dry.
- Let the cake cool in the pan for 15–20 minutes, then carefully invert onto a wire rack to cool completely.
Blackberry Ganache
- Place the chopped white chocolate in a heatproof bowl.
- In a microwave-safe measuring cup (use one large enough so the cream doesn’t bubble over), combine the blackberry jam and 2 tablespoons of heavy cream. Microwave in short bursts (15–20 seconds), stirring in between, until smooth and just steaming. Do not let it boil.
- Pour the hot mixture over the white chocolate and let sit for 1 minute. Stir gently until smooth and fully melted.
- If needed, add more warm cream, 1 tsp at a time, until you reach your desired consistency.
- If the ganache looks greasy, split, or separated, gently heat the remaining 2 tablespoons of heavy cream and add a tsp at a time while stirring continuously until the ganache comes back together and turns smooth and glossy.
- Let the ganache cool for about 30 minutes before pouring over the cake. You can also make it ahead, keep it in the fridge, and heat it gently for a few seconds in the microwave before spreading on top of the cake.
Decorate
- Spread the ganache on top of the cake and top with blackberries. Enjoy!
Esse bolo ficou realmente fantástico, muita vontade de fazer essa receita….. Parabéns!!!!!!