This easy blueberry chocolate cake is a rich, moist chocolate cake filled withblueberries! It is generously frosted with creamy chocolate sour cream frosting and topped with fresh blueberries.
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I love that this rich chocolate cake is decadent and also fresh tasting thanks to fresh blueberries! Blueberry cake with chocolate frosting is perfect for chocolate and fruit lovers.
Creamy chocolate and sour cream frosting is luscious with a touch of fresh flavor from sour cream. Chocolate blueberry cake is perfect for summer.
For more delicious cake recipes, try my blueberry lemon ricotta pound cake, blueberry banana coffee cake and chocolate chip cake loaf.
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Why This Recipe Works
- This single layer blueberry and chocolate cake is made with oil and stays moist for days.
- Blueberry chocolate cake recipe is a cocoa based cake topped with chocolate frosting. It’s super chocolatey just like my heart shaped cake!
- Blueberries add lots of fresh flavor. If you love blueberries, you’ll also love these lemon blueberry blondies and lemon blueberry muffins.
- The chocolate sour cream frosting is so chocolatey and luscious. It’s also delicious with this spiced banana cake!
Ingredients
Below are some useful notes about some of the ingredients.
- Sour cream– Sour cream adds a slightly tangy flavor and creamy texture to cake and frosting. Use full fat, room temperature sour cream.
- Cocoa powder-Use unsweetened or Dutch processed cocoa powder. For more cocoa based treats, try my neapolitan cake and sweet potato chocolate cake.
- Hot water- Hot water brings out the flavor of the cocoa powder.
- Oil-Use a neutral oil such as canola or vegetable oil. I like oil instead of butter in this cake so that it’s more moist and spongy.
- Blueberries- Use fresh or frozen blueberries. Wash and pat dry blueberries before using. Thaw and drain frozen blueberries before using. If you have leftover blueberries, try my baked blueberry donuts and lemon and blueberry muffins.
Please see recipe card below for full list of ingredients.
Substitutions & Variations
- Instead of blueberries, you can use raspberries or blackberries.
- Use unsweetened plain full fat Greek yogurt as a substitute for sour cream.
- Swap in olive oil in place of canola or vegetable oil.
- You can make this cake gluten free. Use a 1:1 gluten-free flour like King Arthur Flour or Bob’s Red Mill to make these gluten-free.
- The blueberry sauce is optional. You can leave it out or use store bought blueberry jam as a substitute.
Instructions
Here are the directions on how to bake this chocolate blueberry cake recipe.
Step 1 (Photo 1 above): Mix the sugar and eggs with an electric mixer til mixture lightens in color. Mix in the oil, sour cream and vanilla.
Step 2: (Photo 2 above): Mix in the cocoa powder then mix in the hot water til combined.
Step 3: (Photo 3 above): Stir the blueberries into the batter til just combined.Pour cake batter into prepared pan. Bake 31-34 minutes. Allow to cool completely.
Step 4: (Photo 4 above): Add the frosting ingredients to a mixing bowl. Turn mixer on low and slowly turn it up to medium high. Beat 1-2 minutes until frosting is completely combined and smooth. Frost the cake. Top with extra blueberries.
Recipe FAQs
Yes! You can use frozen blueberries for the cake. Thaw then drain them before using. I don’t recommend frozen blueberries for the topping. Top the cake with fresh blueberries or just top with frosting only.
Store this blueberry chocolate cake in an airtight container at room temperature for 2 days or in the refrigerator for up to 4 days.
Freeze the unfrosted cake in an airtight for up to 2 months. Defrost it in the refrigerator or at room temperature.
Expert tips
Spoon the flour into your measuring cup. If you dredge the measuring cup into the flour, the flour will become compact. Adding too much flour could make the cake dry. Check out this post on how to measure flour from Love and Lemons.
Clip the sides of the parchment paper. Use small metal (not plastic) binder clips to keep the parchment paper from touching the batter while baking.
Sift the powdered sugar and cocoa powder for the chocolate sour cream frosting. This will prevent lumps and make the frosting smooth.
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Blueberry Chocolate Cake
Ingredients
Blueberry Chocolate Cake
- 1 ¼ cups (250 g) granulated sugar
- 1/2 cup (112 g) oil canola or vegetable
- 2 (100 g) large eggs room temperature
- ½ cup (115 g) sour cream room temperature
- 1¾ teaspoons (1¾ teaspoons) vanilla extract
- ¾ cup (64.5 g) unsweetened cocoa powder
- 1 cup (125 g) all purpose flour
- 1 teaspoon (1 teaspoon) baking powder
- ½ teaspoon (½ teaspoon) baking soda
- ½ teaspoon (½ teaspoon) cinnamon
- ½ teaspoon (½ teaspoon) salt
- 1 cup (148 g) blueberries rinsed, patted dry, stems removed, plus more fresh blueberries for decorating
- ¼ cup (59.15 ml) hot water
Chocolate Sour Cream Frosting
- 5 tablespoons (70 g) unsalted butter room temperature
- ¼ cup (21.5 g) cocoa powder sifted
- 1 ¾ cups (210 g) powdered sugar * sifted
- ⅓ cup (76.67 g) sour cream
- ¾ teaspoon (¾ teaspoon ) vanilla extract
- 1 pinch (1 pinch) salt to taste
Instructions
Blueberry Chocolate Cake
- Spray an 8 or 9 inch cake pan with baking spray. Line the pan with parchment paper. Leave an overhang on both sides to make the cake easier to remove from the pan once baked.
- Preheat oven to 350 degrees Fahrenheit.
- Place the sugar in a large mixing bowl. Using an electric mixer on medium speed, beat in the eggs one at a time. Beat 1-2 minutes, until mixture lightens in color.
- Mix in the oil. Beat until oil is incorporated. Mix in the sour cream and vanilla extract.
- Mix in the cocoa powder.
- Add the flour, baking powder, baking soda, cinnamon and salt just til there are no streaks of flour in the batter. Beat in the hot water til combined. Use a spatula to gently fold in the blueberries.
- Pour cake batter into prepared pan. Bake 31-34 minutes or until a toothpick comes out clean when inserted in the middle of the cake.
- Remove cake from oven and place pan on a wire rack to cool completely.
Chocolate Sour Cream Frosting
- Add all the ingredients in a mixing bowl. Turn mixer on low and slowly turn it up to medium high. Beat 1-2 minutes until frosting is completely combined and smooth.*
Notes
Nutrition
Please note that nutritional values are created by an online calculator and should only be used as an estimate.
Amy -
Made this yesterday and added fresh strawberries on top!
I ran out of the cocoa for the frosting so I added a black cocoa .. definitely took it to another beautiful level..
Thank you! If I could I’d love to send pics.. also dusted with some finely grounded pistachios..
Natalie Ward
Yayyy this makes me so happy, Amy! Thanks for sharing your amazing recipe notes. I love the idea of adding fresh strawberries, black cocoa and pistachios and I’d love to see pics 😍 If you get a chance, please message me on IG or email at [email protected]
Taylor
Excited to try this recipe! Does it make a difference if blueberries are left out?
Natalie
Hi Taylor, I’m exctied for you to try this recipe too! Hmmm, I haven’t made this cake without blueberries. I think it would be delicious with or without them! Please let me know if you have any other questions. Enjoy!
Mary
Do you think this would work as a layer cake? My 4 year old requested a chocolate blueberry cake, and I’d like to make it a layered/decorated cake.
Natalie
Hi Mary, That’s cute that your four year old requested a chocolate blueberry cake! I haven’t tried this as a layer cake yet, but I think it would work if you’re not planning to pipe the frosting (since the frosting isn’t as firm as buttercream). Please let me know if you have any other questions! -Natalie
Nitika
How much does 1 cup measure in weight ?
Natalie
Hi Nitika, 1 cup of flour is 120 grams. Please let me know if you have any other questions 🙂 -Natalie
Andrea
wow! This cake is so delicious and the frosting on point without being too sweet. This will be going into my regular rotation of desserts.
Natalie
Hi Andrea! I’m so happy you enjoyed this cake and love to hear it’s going into your rotation of desserts! Best compliment 🙂 Thanks and have a great weekend.
Helen
Can I substitute greek yoghurt for the sour cream?
Natalie
Hi Helen, Yes you can substitute greek yogurt for sour cream in the cake batter, but unfortunately I’m not sure how it’d work out for the frosting. I hope you enjoy the cake! Please let me know if you have any other questions.