Name: Blueberry Chocolate Cake Recipe
Prep time: 1 h 15 min
Cook time: 35 min
Total time: 5 h 50 min
Yield: 10
Cuisine: American
Ingredients: 2 cups (240g) all-purpose flour, spooned and leveled; 2 cups (400g) granulated sugar; 1 cup (80g) dutch-process cocoa powder, spooned and leveled; 1 Tbsp (10g) baking powder; ½ tsp salt; 3/4 cup (6oz) vegetable or canola oil; 2 large eggs, room temperature; 3/4 cup (6oz) coffee, room temp*; 3/4 cup (6oz) milk, room temperature; 2 cups (280g) blueberries, frozen or fresh (regular or wild blueberries); 1/4 cup granulated sugar; 1/2 medium lemon; 1 cup (6oz) dark chocolate chips; 1/2 cup (4oz) heavy whipping cream; 4 large egg whites, room temperature; 1 cup (200g) granulated sugar; 1 cup (227g) unsalted butter, room temperature; 1/4-1/2 cup blueberry jam, chilled (I did just under 1/4 cup because I didn’t want the color so dark but the buttercream can hold up to 1/2 cup of jam if you want a darker color and flavor).; 2 tsp vanilla bean paste; 1/8 tsp fine sea salt

Jump to Recipe

Blueberry Chocolate Cake has a fudge-y chocolate cake recipe with a homemade wild blueberry jam, dark chocolate ganache and blueberry Swiss meringue buttercream. Summer Indulgence at its finest!

Ya’ll!!! If you’ve been here a while, you might know I’m more of a chocolate/peanut butter/caramel/etc. Type of dessert lover but this…This blueberry chocolate cake got me. This is the ULTIMATE summer indulgence.

What is in this blueberry chocolate cake

What’s not to love? Cake is always a good idea especially where it involves

No-mixer fudge-y chocolate cake
10 minute blueberry jam (frozen or fresh blueberries)
Easy dark chocolate ganache
Blueberry Swiss meringue buttercream (or any buttercream you want), just add a couple of tablespoons of the blueberry jam we made.

Ingredients

Flour: I use all-purpose flour in most of my cakes and I also HIGHLY recommend using a digital scale, as flour is so often over measured.
Cocoa Powder: I love dutch-process and I recommend that here but natural unsweetened cocoa powder works here as well. You’ll likely get a lighter color and slightly less intense flavor.
Sugar: please don’t cut the sugar… 🙂
Coffee: I use coffee to make the chocolate color darker and the flavor more intense. Water also works here.
Eggs: I use room temperature, large eggs. Pop them in hot water for a few minutes if they’re cold.
Milk: You can use 2%, full fat or dairy free milk here.
Blueberries: You can use fresh or frozen blueberries for the blueberry filling. You can also use regular or wild blueberries.
Butter: I use unsalted butter in the buttercream.
Chocolate: I like the chocolate ganache with dark chocolate. If you use milk chocolate, cut the heavy cream by a couple of tablespoons.

Step-by-Step Instructions

Make the Chocolate Cake: whisk together the dry ingredients in a bowl and the wet ingredients in a separate bowl. Sift the dry ingredients over the wet and mix until it’s smooth. Bake in three greased and lined 6 inch cake pans at 350F for about 35 minutes.
Make the Blueberry Jam: combine the blueberries (no need to thaw if they’re frozen) with the sugar and lemon. Simmer over medium-low heat for 10-15 minutes, until it’s thickened. Cool Completely.
Make the Chocolate Ganache:simmer the cream and pour it over the chocolate chips, cover and let it rest for a few minutes. Gently stir the mixture until it’s completely smooth. Allow it to cool completely and refrigerate it for 15-30 minutes before assembling if it feels too soft.
Make the Blueberry Swiss Meringue Buttercream:make the swiss meringue buttercream and add the blueberry jam. I used 2 Tbsp for a lighter color but the buttercream can hold up to ⅓ – ½ cup, depending on how runny the jam is.
Assemble The Cake: pipe a border around the edge of the first layer of cake. Fill it in halfway with a thin layer of blueberry jam and then top it with the chocolate ganache. Make sure they don’t spill over the border. Place the second layer on top and then repeat with the last layer. Refrigerate the cake for at least an hour so it’s solid when frosting.
Frost the cake: I didn’t do a crumb coat because the buttercream is speckled anyway. Use the rest of the buttercream to frost the outside of the cake and then use a cake scraper to smooth the sides, allowing it to create that rough edge at the top of the cake. Leave that edge nice and tall. Refrigerate the cake, the leftover chocolate ganache and the leftover blueberry jam for about another hour.
Decorate the cake: When the cake is cold and the chocolate ganache is chilled, spread the chocolate ganache on top of the cake inside the top border. Refrigerate it again for 20-30 minutes until the chocolate feels set. Place a half moon design of blueberry jam on top and top with fresh blueberries, chocolate covered blueberries, gold foil and flowers.

put all the ingredients for the jam in a saucepan

cook until reduced and thickened — put all the ingredients for the jam in a saucepan

Frequently Asked Questions

Can I use store bought blueberry jam?

You can use whatever store bought blueberry jam you like, just make sure not to add too much to the buttercream if it’s more runny than mine looks in the photo.

Can I use milk chocolate for the ganache?

You can but you’ll have to cut down on the heavy cream by a couple of tablespoons.

Can I make this into a sheet cake?

Yes! You can bake this into a 9×13” sheet cake, it may take 45-50 minutes to bake.

Can I make this into cupcakes?

Yes! You can make it into 23-24 cupcakes. Fill them ¾ full and bake for approximately 20 minutes, until they spring back when you press on them. You can place the blueberry jam and the chocolate ganache into two separate piping bags. Fill the cupcakes with the blueberry jam, pipe a border of blueberry buttercream on top of the cupcake and fill it in with the chocolate ganache.

Border of blueberry buttercream, blueberry jam filling and topped with chocolate ganache

Can I bake this into 8 inch cakes?

Yup, you can bake this blueberry chocolate cake in two 8 inch pans or a 9×13″ sheet pan.

If you do the sheet pan, you could a layer of chocolate ganache on the cake, refrigerate it until it’s set. Then top with frosting and swirl in some blueberry jam on top of the frosting.

How to store blueberry chocolate cake

Store the cake fully covered in the refrigerator for up to a week.

How to freeze

Cakes stay more fresh when they’re frozen. Place cake slices in an airtight container and then place the container in a freezer bag. Freeze for up to a couple of months. Bring back to room temperature before serving.

Thanks so much for reading today’s post, if you have any questions just comment down below. Make sure to leave it in the comment section because I can’t answer in the rating section :).

If you make this blueberry chocolate cake I would love to see it so make sure to tag me @baranbakery on instagram and check out my cookbook, Frosted, for a blueberry cardamom cake (add 1 cup of blueberries to the batter)!

As always, have a blessed day and happy baking!

Love, B

Yield: 10-16 slices