Bumpy Cake – Cookies and Cups

Bumpy Cake is a chocolate cake that’s topped with ribbons of vanilla buttercream and coated in chocolate ganache. The cake will get its title from the “bumps” which can 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 total recipe!

A slice of Bumpy Cake on a white plate

Bumpy Cake

Bumpy Cake is a basic dessert that originated in Detroit, Michigan. It’s a wealthy Satan’s Meals cake that’s topped with a wealthy, buttery vanilla frosting and coated in a thick layer of chocolate ganache. The cake will get its title from the “bumps” which can 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 recognized for its scrumptious goodies and desserts. Rumor has it that the corporate’s founder, Fred Sanders, ran out of vanilla frosting sooner or later, 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 this present day! I don’t know if that is true, nevertheless it’s a very good story!

Particular Instruments You Might Want

Past the plain, a 9×13, a stand mixer and so on, there are just a few instruments that may 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. In the event you don’t have piping luggage, you are able to do this with a zip-top bag as nicely!
  • An offset spatula. This isn’t completely vital, nevertheless it all the time makes spreading that chocolate fudge frosting simpler. In the event you don’t have one I extremely suggest choosing one up. 
  • A whisk. This isn’t actually “particular”, nevertheless it actually helps make that chocolate ganache icing you pour on high easy! 
Bumpy Cake on a white plate


For the total recipe and substances 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

The right way 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 velocity till mixed. 
  • With the mixer nonetheless on low add within the eggs, buttermilk, oil, and vanilla, mixing till simply mixed, scraping the perimeters 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 middle comes out clear.  
  • Place the cake pan on a wire cooling rack and permit it to chill fully. 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 velocity. Add within the powdered sugar and 1 tablespoon of milk and proceed mixing for two minutes till creamy, scraping the perimeters 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 when 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 continually 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 incessantly, 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

Ideas To Success:

  1. Use high-quality cocoa powder: The chocolate taste is the star of Bumpy Cake, so it’s necessary to make use of a high-quality cocoa powder for the most effective taste. I like to recommend utilizing Dutch course of cocoa powder, and even Hershey’s Darkish cocoa powder. 
  2. Ensure that 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 need to obtain the bumps. Chilling the cake earlier than including the ganache ensures that the buttercream bumps maintain their form while 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: It will assist create clear slices and stop the cake. You don’t have to do that, however a knife run beneath sizzling water will slice by 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 have to be refrigerated?

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

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Bumpy Cake Pinterest Image