Chocolate Cake with Blackberry Buttercream Frosting

I usually use Valentine’s Day as an excuse to make something ridiculously decadent and pink. I did really well this year.

The frosting isn’t raspberry or strawberry: it’s blackberry. I love a little blackberry jam on my toast but can’t eat more than a thin layer. The sour berry lends itself perfectly to sweet frosting! It makes an extremely rich and deep flavor, rather than something too sweet.

And the decorating was really easy too. Get a 1M or 2M decorating tip, make a circle, and then swirl around the circle two or three times! My frosting was a tiny bit too runny, but that’s okay. My decorating inspiration came from the wonderful I am Baker, who posted a great rose tutorial here.

Hershey’s Perfectly Chocolate Cake

2 c sugar
1 ¾ c all-purpose flour
¾ c cocoa
1 ½ tsp baking powder
1 ½ tsp baking soda
1 tsp salt
2 eggs
1 c milk
½ c vegetable oil
2 tsp vanilla extract
1 c boiling water

Heat oven to 350°F. Grease and flour two 9-inch round baking pans or one 13x9x2-inch pan.

Stir together sugar, flour, cocoa, baking powder, baking soda and salt in large bowl. Add eggs, milk, oil and vanilla; beat on medium speed of mixer 2 minutes. Stir in boiling water (batter will be thin). Pour batter into prepared pans.

Bake 30 to 40 minutes or until wooden pick inserted in center comes out clean. Cool 10 minutes; remove from pans to wire racks. Cool completely.

Blackberry Buttercream Frosting adapted from Sammyw

1 c unsalted butter, room temperature
½ c seedless blackberry jam
4-6 cups powdered sugar

Beat butter and jam with electric mixer with paddle attachment. Cream until well incorporated, bout two minutes.

Gradually add powdered sugar until you reach the desired consistency.

To assemble a layered cake, cut in two however you like. Spread a layer of blackberry jam along bottom layer. Place the second layer on top. Decorate with blackberry buttercream frosting.

41 comments


  • Wow! That is definitely too good to eat.

    February 16, 2011
  • This is a beautifully decorated cake, and I love the blackberry frosting idea. I’m sure it’s delicious!

    February 16, 2011
  • Yum! This looks great!

    February 16, 2011
  • Oh my, that looks and sounds amazing! Just added seedless blackberry jam to my shopping list!

    February 16, 2011
  • Love it! This cake looks so pretty and decadent, and I love the idea of blackberries plus chocolate. Yum!

    February 16, 2011
  • That cake looks delicious! The creaminess of the butter paired with the acidity from the berry, what a great combination and it gives the icing a beautiful colour. :)

    February 17, 2011
  • This has to be one of the most lovely cakes I have seen in the longest time. It is just perfection and I love the use of blackberry jam. The color is just gorgeous and the chocolate cake sounds like a divine match with the frosting.

    February 17, 2011
  • Yum, this looks amazing. Blackberry+Chocolate- brilliant!!

    February 17, 2011
  • beautiful, beautiful blog!!!!!

    February 17, 2011
  • Blackberry and chocolate, how super sexy! And of course the pink buttercream roses look fabulous.

    February 18, 2011
  • this looks beautiful beyond belief!!!!

    February 20, 2011
  • zilchie

    Oh lordy. Be my Valentine!

    February 21, 2011
  • Oh my decadent goodness! I want to make this cake so badly. It looks delicious!

    March 29, 2011
  • […] one: post an enticing cupcake recipe to your “making me hungry” pin […]

    April 25, 2011
  • Thanks for commenting on my blog. Sweet!! The icing you made sounds super, duper yum. I’ve got to try it!!

    April 26, 2011
  • […] Cake Recipe from Foodess. The frosting adapted from In the Wabe […]

    May 2, 2011
  • Jordan

    The cake is delicious, however. I think the frosting would be better with real blackberries! :)

    May 8, 2011
  • lovely cake .its amazing

    May 14, 2011
  • Bonnie

    That looks good!.I’m going to try this recipe.

    September 5, 2011
  • […] as if that wasn’t enough to induce the drool for you, i find that i also can’t live without something like this in my life… in the wabe‘s perfect chocolate cake with blackberry buttercream frosting […]

    March 28, 2012
  • Great post. Some people say chocolate is better then anything. We have to agree 100%. Have to revisit this post.

    April 11, 2012
  • I tried it out and it’s absolutely amazing!! Love this recipe.

    April 27, 2012
  • […] Blackberry Buttercream frosting recipe (directly from In the Wabe): […]

    May 15, 2012
  • Gorgeous colour! And your last photo made me hungry, literally just after eating lunch..

    July 13, 2012
  • marvelous!!!!!!!!!
    big, big like!!!

    July 13, 2012
  • Kandy

    I am having a problem with reading the amounts of the ingredients…there are odd symbols and i am not sure of the amounts of each ingredient. Looks like a perfect cake and frosting!

    May 20, 2013
    • Alyssa

      Thank you for letting me know! Looks like my formatting got a bit messed up when I moved my website over. It should be all fixed now! :)

      May 20, 2013
  • maria

    hi! :)
    thank you for the GORGEOUS recipe!! only one question. Seedless puree of berries: would it help?

    June 17, 2013
    • Alyssa

      I think that would be wonderful! You’ll just want to make sure to try to match the consistency and flavor of the jam–you don’t want your frosting to be too runny! Let me know how it goes!

      June 19, 2013
  • maria

    oh thank you!! gonna try it soon on my little brother’s bday!!

    July 1, 2013
  • Doesn’t it taste too sweet

    January 6, 2014
  • I think I need to make this.

    February 11, 2014
  • […] Berry frosting […]

    February 14, 2014
  • I have been wanting to try this frosting with my husbands homemade raspberry jam for the longest time. Well tonight was the night. I am very happy with how it turned out.

    You can see the cupcakes I made with the minis here: http://notyournormalsteam.wordpress.com/2014/02/14/valentine-trifecta-berry-loved-cupcakes/

    February 14, 2014
  • yum

    February 18, 2014
  • this looks good

    February 20, 2014
  • This looks tremendously delicious!!!

    June 22, 2014
  • Frances Ambrose

    Have made my own choc cake…but can wait to trying out this frosting yum! looks delicious…will let you know how it goes:-)

    June 29, 2014
  • […] Blackberry Buttercream Frosting | Alyssa B […]

    April 2, 2015
  • I experimented with this tonight (vanilla cake, blackberry butter cream filling, chocolate cream cheese frosting around the cake) and I really liked it. However, I never got the same color you did. Mine looked much more purple. Also, I found 1/2 cup to not be enough. I ended up adding an entire jar and I still could have added more if I had it. I love chocolate and tart things together.

    May 2, 2015

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