Black Magic Cake with Whipped Chocolate Frosting







Black Magic Cake

1 3/4 cups cake flour
1/2 cup unsweetened cocoa powder
1/4 cup dark cocoa powder (substitute regular if desired)
2 teaspoons baking soda
1 teaspoon baking powder
3/4 teaspoon salt
1/2 cup oil
2 cups granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 cup buttermilk
1 cup strongly brewed coffee

Whipped Chocolate Frosting
1/2 cup heavy whipping cream
1/4 cup unsalted butter, softened
1/4 cup sour cream
1 1/4 cups confectioners' sugar
1/4 cup unsweetened cocoa powder
1/2 teaspoon vanilla extract
Pinch of salt
1/2 cup milk or semi-sweet chocolate chips, melted

Heat oven to 350 degrees F. Coat insides of a 13x9-inch glass baking dish with cooking spray.

In a medium mixing bowl, sift together flour, cocoa powders, baking soda, baking powder and salt. In a large mixing bowl, using a mixer on medium speed, beat together oil and sugar until fluffy - about 1 minute. Beat in eggs and vanilla until combined - about 2 minutes. Beat in buttermilk and coffee until combined. Reduce mixer speed to low and gradually beat in flour mixture until just combined.

Pour batter into prepared pan (will be thin). Bake 35-40 minutes or until cake is well risen and no longer wobbles. Cool completely on a wire rack.

To make the frosting, in a large mixing bowl, using a mixer on high speed, beat cream until stiff peaks form; set aside.

In an additional large mixing bowl, using a mixer on medium speed, beat together butter and sour cream until creamy - about 1 minute. Beat in confectioners' sugar, cocoa powder, vanilla and salt until well combined - about 1-2 minutes. Beat in melted chocolate until combined. Fold whipped cream into chocolate mixture until well combined. Spread frosting over cake.

Makes 12 servings


  1. Oh YUM! I'm so glad your coworker was so generous as to give you the super secret recipe. :) This sounds and looks so yummy. I'm going to try the frosting, too! Mmmmm.

  2. That cake looks almost blue...I love things that have nice colors :)

  3. That cake looks good, good, good!!!The frosting looks delicious and love that dark chocolate color of the cake.

  4. When I read the story about this cake, ti reminds me of a Friends episode... Phoebe's best chocolate chips cookies recipe was Hersey'S too.... Anyway, this cake looks so good. Think my man would love it for Valentine's day

  5. This would definitely get me out of my winter doldrums. My favorite thing ever is a simple chocolate sheet cake with icing, and this looks too good not to try! This would be perfect for Valentine's day!

  6. Glad you got the recipe! I have used the Hershey's chocolate cake recipe for cupcakes before, and I wasn't too happy with the results in cupcake form. Taste was great, it just didn't rise and dome to my liking. But looks like yours came out perfect in cake form--I'll have to give that a shot sometime!

  7. Black magic? Sounds good enough to us! This looks like chocolate obviously we love it.

  8. That old black magic has cast it's spell juts in time for Valentine's Day.

  9. This looks surprisingly dark and intense. I love the look of the moist texture too. Looks like you snagged a good recipe !

  10. I was wondering if you used 1/4 cup of Dutch cocoa or just a dark natural cocoa...I think Hershey's special dark cocoa powder is not Dutch, but I could be mistaken.

  11. I remember making a chocolate cake from Hersheys that had an incredibly thin batter too. Wonder if it was the same recipe. The "old family recipe" recipe story made me think of that episode of Friends with Phoebe's grandmother's special chocolate chip cookies - Neslay Tooloose.

  12. I just made chicken chili!!! Small world.

    My all time favorite best in the world brownies are from Hershey's, so they definitely know what they're doing. That cakes looks positively awesome. And I love the name.

  13. This reminds me of that FRIENDS episode where Phoebe goes on and on about how how her grandmother has this age-old French chocolate chip cookie recipe...and really it was just the Nestle Tollhouse back-of-the-bag version. Just goes to show you good does not have to come from a gourmet cookbook. I love the intense chocolatiness of this cake!

  14. OH MY THIGHS (love that) this cake looks amazing! I think I might just need to make it this weekend!

  15. Thanks for sharing this recipe. I, too, am always on the lookout for a great chocolate cake recipe and I can't wait to try this one.

  16. I think my thighs would approve of this one too. It looks super delish.

  17. I love the dark color of the cake! And I definitely want to try that frosting recipe.

    I can't wait to see what kinds of things you bake up for Valentine's Day! I'm sure Eric will love them=)

  18. Mmm, the darker the cake looks the better I always assume it will taste :-)

    Your pictures are incredible!

  19. Speechless! My dad LOVES chocolate cake and this is just the kind he dreams about. ;) Dying to try your frosting!

  20. Thanks everyone!

    Kim, it seems like this post reminds everyone of that episode! Haha.

    Welcome, I used Hershey's Dark.

    Sherry, what do you think I should bake ol' Ericcakes?

  21. wowza. that is, perhaps, the darkest, moistest chocolate cake my eyes have ever seen. and the frosting you've concocted is, as guy would say, off the hook. :)

  22. Ooohhhmmyyyggooossshhh!! This looks incredible, my mouth is watering.

  23. oh wow! this looks perfect--I can't wait to make sometime!

  24. this does sound like a winning chocolate cake!! yum :)

  25. Emily,
    My husband and I don't drink coffee at all. Would it be possible to substitute hot chocolate instead? I'm hoping to make this for Valentines Day tomorrow. Thanks!

  26. Hi Casey, I think that would work! Of course the hot chocolate has sugar in it, though, so you would have to cut back in the sugar in the cake. I might try using 1 1/2 cups instead of two.

  27. Made the cake yesterday and it turned out fantastic! The frosting was our favorite part. Thanks so much for the advice and posting this recipe Emily!

  28. Casey, yaaay! I'm go glad you liked it! I'm especially like that you guys enjoyed the icing.

  29. Thanks for the recipe! These were delicious!

    - Annie

  30. Just bought the 6pack 6week Jillian Michaels DVD thanks to your review. I hope its as great as people say it is.. I'm going to the Bahamas in 3 months!!

  31. Hi, I just made this cake yesterday and topped it with cream cheese frosting. It is delicious, thanks for sharing the recipe! The batter seemed so liquidy going into the pan, I checked the recipe about 3 times to make sure I didn't measure something wrong, but it is perfect - so moist and chocolately. Yum!