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Banana Fudge Cake

You'll love the banana flavor throughout this moist, fudgy cake and fluffy frosting from Jan Gregory of Bethel, Ohio. "This recipe was given to me by my mother-in-law. It's a favorite at family gatherings," Jan reports.
  • Total Time
    Prep: 15 min. Bake: 35 min. + cooling
  • Makes
    12-15 servings


  • 1 package chocolate fudge cake mix (regular size)
  • 1 large ripe banana, mashed
  • 1/2 cup butter, cubed
  • 1/4 cup water
  • 5-1/2 cups confectioners' sugar, divided
  • 1/4 cup baking cocoa
  • 1 small ripe banana, mashed
  • 1/2 teaspoon vanilla extract


  • In a large bowl, prepare cake mix according to package directions, omitting 1/4 cup of the water. Beat on low speed until moistened. Add banana; beat on high for 2 minutes.
  • Pour into a greased 13x9-in. baking pan. Bake at 350° for 35-40 minutes or until a toothpick inserted in the center comes out clean. Cool completely.
  • In a large saucepan, add butter and water. Cook over medium heat until butter is melted; stir until combined and set aside.
  • In a large bowl, combine 4 cups confectioners' sugar and cocoa. Add the butter mixture, banana and vanilla; beat until smooth. Add enough remaining sugar until frosting reaches desired spreading consistency. Frost the cake.
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Average Rating:
  • squeakymouse
    Oct 19, 2014

    The cake was delicious but the frosting has problems. Tastes great but too much liquid. Next time I'll omit the water & will use softened butter. I had to add at least 2 more cups of sugar & doubled the cocoa. Too sweet & still too soft.

  • Julia Kristine
    Feb 28, 2013

    I don't give this cake any stars, I am a scratch baker, don't know what came over me to try this, it taste's nothing like homemade, their is a difference, the frosting is Waaaaaay to sweet, and I put way more confection. sugar than suggested, I am going to put this cake down the disposal, I will stick with what I know to be delish. I have had many delicious recipe's from this site, this is not one of them. AND, it looks nothing like the picture. If anyone wants to try it, you go ahead, I want to read your review.

  • DorothyShaw
    May 2, 2012

    It tastes so good and the banana makes it moist and I was impressed and so will my family. Thanks for sharing, Jan. Dot Shaw in Tilton, N.H. where today is cloudy and cool.

  • sjo92172
    Jun 2, 2011

    No comment left

  • LLFR
    Jun 1, 2011

    The combination of chocolate and banana was a big hit with my co-workers. It was really moist. This will be added to my favorites.

  • sclrb4
    Apr 2, 2011

    No comment left

  • lazyjcafe
    Jul 3, 2010

    I omitted the oil, as georgeff did, thinking I would shave off some of the fat per serving. My results were not as good, unfortunately. Next time I will follow the original recipe as tested, because they always turn out right that way. The flavor of the cake is delicious, but the texture is very spongy and strange.

  • jdh0731
    May 26, 2010

    This is so-o-o good!!

  • georgeff
    May 6, 2010

    This cake was a hit...even though I goofed! I did follow the directions on the cake box and I omitted 1/4 cup of water. But I forgot to add the oil. Guess what? It didn't even need it. Also, I tested the cake when it cooled down and realized it didn't even need the frosting! This cake is rich, moist, and delicious. I usually test new recipes on my friends at our weekly card games, and this cake was quickly gobbled up.

  • plumshoe
    Apr 22, 2010

    I was very impressed with this recipe. The banana really makes a difference in the cake batter. I liked the cake by itself, so I didn't bother to make the icing. This would even make a nice home made birthday cake :)