Bumpy Cake – Cookies and Cups

Bumpy Cake is a chocolate cake that’s topped with ribbons of vanilla buttercream and lined in chocolate ganache. The cake will get its identify from the “bumps” which might be created by the frosting when it’s unfold on high of the cake.

This recipe is in partnership with Imperial Sugar. CLICK HERE for the complete recipe!

A slice of Bumpy Cake on a white plate

Bumpy Cake

Bumpy Cake is a traditional dessert that originated in Detroit, Michigan. It’s a wealthy Satan’s Meals cake that’s topped with a wealthy, buttery vanilla frosting and lined in a thick layer of chocolate ganache. The cake will get its identify from the “bumps” which might be created by the frosting when it’s unfold on high of the cake.

Bumpy Cake was created by the Sanders Sweet Firm, which was identified for its scrumptious sweets and desserts. Rumor has it that the corporate’s founder, Fred Sanders, ran out of vanilla frosting in the future, so he piped on what he had and poured chocolate ganache on high to cowl the cake, creating the bumps you see. The cake turned out to be successful, and it’s nonetheless offered to today! I don’t know if that is true, but it surely’s a very good story!

Particular Instruments You Could Want

Past the apparent, a 9×13, a stand mixer and so on, there are just a few instruments that can assist make the method simpler!

  • A piping bag. And you probably have a big spherical piping tip, even higher! However only a bag will do as a result of you may snip off the tip of the bag, making a spherical opening. When you don’t have piping baggage, you are able to do this with a zip-top bag as effectively!
  • An offset spatula. This isn’t completely vital, but it surely all the time makes spreading that chocolate fudge frosting simpler. When you don’t have one I extremely advocate selecting one up. 
  • A whisk. This isn’t actually “particular”, but it surely actually helps make that chocolate ganache icing you pour on high easy! 
Bumpy Cake on a white plate


For the complete recipe and components checklist CLICK HERE!


  • All-purpose flour 
  • Granulated sugar 
  • Unsweetened cocoa powder 
  • Baking powder
  • Baking soda
  • Eggs
  • Buttermilk
  • Canola oil
  • Vanilla extract
  • Brewed espresso

Vanilla Frosting:

  • Butter
  • Powdered sugar
  • Milk
  • Vanilla extract

Chocolate Icing:

  • Butter
  • Dutch course of cocoa powder
  • Heavy whipping cream
  • Mild corn syrup
  • Sifted powdered sugar
Bumpy Cake being serves on a spatula out of a 9x13

Tips on how to Make This Bumpy Cake Recipe:

  • Cake: Preheat the oven to 350° F. Coat a 9×13 inch baking pan nonstick spray, put aside.
  •  Within the bowl of your stand mixer fitted with the paddle attachment, add within the flour, sugar, cocoa powder, baking powder, baking soda and salt. Combine collectively on low pace till mixed. 
  • With the mixer nonetheless on low add within the eggs, buttermilk, oil, and vanilla, mixing till simply mixed, scraping the edges of the bowl as vital. Slowly stream within the espresso and blend till easy and mixed. 
  • Pour the cake batter into the ready pan and bake for 25 – half-hour, till the middle is ready and a toothpick inserted within the heart comes out clear.  
  • Place the cake pan on a wire cooling rack and permit it to chill utterly. Degree the highest of the cake with a serrated knife, if it domes when it bakes, so the highest is flat. 
  • Vanilla Frosting: Within the bowl of your stand mixer fitted with the paddle attachment combine the butter till easy on medium pace. Add within the powdered sugar and 1 tablespoon of milk and proceed mixing for two minutes till creamy, scraping the edges of the bowl as vital, including extra milk if the frosting is simply too stiff. 
  • Place the frosting in a piping bag with a 1- inch spherical tip, or just snip the underside of the bag with scissors. Pipe the frosting into lengthy tubes width-wise throughout the cake about 1 inch aside. Place the cake within the freezer whilst you put together the chocolate icing.
A piped tube of vanilla frosting on top of chocolate cake
  • Chocolate Icing: In a medium saucepan over medium-low warmth, soften collectively the butter, cocoa powder, heavy cream, and corn syrup. Carry the combination to a boil and whisking consistently boil for two minutes. Slowly add within the powdered sugar, persevering with to whisk till mixed. Proceed to cook dinner and whisk for 4 – 5 minutes till the combination is easy and shiny. Take away from the warmth.
Chocolate Ganache in a glass bowl with a rubber spatula
  • Switch the icing right into a glass bowl and permit it to chill for 10 – quarter-hour, whisking regularly, till it’s heat, however not sizzling.
  • Take away the cake from the freezer and pour the chocolate icing on high, coating the vanilla frosting first, after which rigorously filling in the remainder of the highest of the cake, spreading it gently if wanted, cautious to not disturb the vanilla frosting. All of the chocolate icing to set earlier than serving. 
Cake spread with chocolate ganache frosting in a 9x13 pan

Suggestions To Success:

  1. Use high-quality cocoa powder: The chocolate taste is the star of Bumpy Cake, so it’s vital to make use of a high-quality cocoa powder for one of the best taste. I like to recommend utilizing Dutch course of cocoa powder, and even Hershey’s Darkish cocoa powder. 
  2. Make certain the cake is totally cooled earlier than including the vanilla frosting: If the cake continues to be heat, the frosting will soften and lose the spherical tubes of icing you wish to obtain the bumps. Chilling the cake earlier than including the ganache ensures that the buttercream bumps maintain their form once you unfold on the nice and cozy chocolate icing. And for the reason that cake is chilled too it would assist the chocolate to arrange faster.
  3. Use a heat knife to chop the cake: This may assist create clear slices and stop the cake. You don’t have to do that, however a knife run underneath sizzling water will slice via simpler. Simply dry off the water and wipe it off in between every slice.
chocolate devil's food cake topped with vanilla buttercream and chocolate ganache sliced on a white plate

Does Bumpy Cake should be refrigerated?

Bumpy Cake is historically served chilled. You completely don’t have to sit back it, however for authenticity, it’s beneficial. I truly don’t want chilled cake, so I maintain mine at room temperature and it’s completely fantastic, however that’s simply me!

Click on HERE to take you to the FULL RECIPE

Love Chocolate Cake? Right here Are A Few Extra Recipes To Attempt:

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