Banana Cake with Peanut Butter Frosting Recipe - Skillful Cook
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Banana Cake with Peanut Butter Frosting

3 reviews / 5 average


I have a few exciting things to share with you today, because it's Friday and things should be exciting on Friday.

  • A re-organized recipes page and a re-vamped resources for food bloggers page!
  • An amazing video from my friends Alex and Sonja about how to make homemade pizza dough. Someday when I get a stand mixer, or become more sophisticated, or fall out of love with Domino's cheese pizza and breadsticks, I will make this homemade pizza dough and it will be awe-some.
Banana cake with peanut butter frosting in a white baking dish on a wooden surface.
  • Exciting tidbit number 3 is that after about three weeks of Instagramming, I've decided to quit my job and become a professional Instagrammer. Bjork, don't worry about it.
  • I went on a field trip this week, and let's just say eating a bag lunch on the floor at the museum was not the highlight of my week (sorry, kiddos). And I should probably delete that because it doesn't fit with my list, but I'm going to press enter instead. Readysetgo.
School Bus.
  • Exciting = cake. I made a wonderfully moist, sweet, perfectly dense banana cake. It was semi-healthy. It was topped with at least 5 inches of vegan peanut butter frosting. As it should be.
  • It was inspired by Sketch-free Vegan Eating. Thank you, ladies, for being sketch-free.
  • Vegan frosting tastes good straight from the bowl. And so does regular frosting.
One piece of banana cake with peanut butter frosting on a fork.
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A picture of <span class="fn">Banana Cake with Peanut Butter Frosting

Banana Cake with Peanut Butter Frosting


This banana cake with peanut butter frosting just happens to be vegan! Perfectly sweet and moist cake with a decadent peanut butter frosting. Yum!


  • 1 1/2 cups whole wheat pastry flour
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • pinch of salt
  • 1/4 cup sugar
  • 1/2 cup maple syrup
  • 1/2 cup banana puree
  • 1/2 cup oil
  • 1/4 cup water
  • 1 beaten egg (sub 4 teaspoons flax for vegan)
  • 1/4 cup natural peanut butter
  • 1/4 cup water
  • 2 tablespoons sugar


  1. Preheat oven to 350 degrees.
  2. In a large bowl, sift the flour, powder, soda, salt (and flax, if using).
  3. In a smaller bowl, combine sugar, maple syrup, banana puree, oil, water, and egg.
  4. Add wet ingredients to dry ingredients. Pour into a greased 9×9 baking dish. Bake for 20-24 minutes or until knife inserted comes out mostly clean.
  5. For the frosting, whisk peanut butter with sugar and water until smooth and fluffy. Add more peanut butter or water to achieve the desired consistency. Frost the cooled cake and serve immediately.


This is best eaten the same day that you baked it. This cake is great (and a little lighter) without the frosting, too! And I actually used more like 1/2 cup of PB and 1/2 cup of water for the frosting... because I wanted MORE! This is reflected in the nutrition facts below.

  • Prep Time: 15 mins
  • Cook Time: 25 mins
  • Category: Dessert
  • Cuisine: American

Keywords: banana cake, peanut butter frosting, banana dessert

Got anything exciting to share this Friday?

And if you could just leave your exciting comments by 6:30 pm or so? That's when I'm going to bed tonight.


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  1. Skillful Cook Logo

    Ha! Good morning! I think after seeing the nutrition label app, I may have to hijack my sons ipod so I can mess around with some of these things. I made him download Instagram the other day so I could at least see what it’s like! Haven’t gotten further than that though. . . .
    On another note, I just got my own KitchenAid mixer! It’s really an awesome addition to the kitchen. One reader likened it to a new family member – now I’m obsessed with finding a name for her. . . (the mixer). Have a great day – and sleep tight this evening! 😉

  2. Skillful Cook Logo

    Oh I want to get in on that professional instagramming lark. I think I need to upgrade my amateur status. I have nothing exciting to share other than the fact that is is Friday which, really, is exciting enough in itself!

    This cake looks totally delicious!

    1. Skillful Cook Logo

      Great idea! I noticed that even just a layer of PB frosting helped to keep it from drying out. Gotta love that PB!

    1. Skillful Cook Logo

      If you follow the serving size, you’ll get 9 huge pieces! Big slab coming right up…

  3. Skillful Cook Logo

    Thanks for the shout-out Lindsay! You could always bypass the mixer and put Bjork to wjork kneading the dough. Or, you can just keep dropping hints to Sonja’s Mom until she gets you a mixer for Christmas 🙂

    I’m intrigued by this frosting, interesting…

    1. Skillful Cook Logo

      lol… Does Sonja’s mom have an email address? 🙂 Seriously, though, you guys have done an awesome job with your videos. Love them!

    1. Skillful Cook Logo

      Yeah! It’s not the best for getting a screen shot of the label and uploading it, but it works for on-the-go!

    1. Skillful Cook Logo

      Aw, thanks Soo! I don’t know if that’s really true 🙂 but it’s such fun to play with!!

    1. Skillful Cook Logo

      Ohh, I know.. it was so perfect! A little dense, a little gooey, a little fluffy… all in one cake.

    1. Skillful Cook Logo

      I usually use sparkrecipes “nutrition calculator” tool for the images that I post on my blog, but I wanted a mobile version and this was the only one I could find. 🙂 But so far, so good!

  4. Skillful Cook Logo

    Yummm! I’m totally in love with this cake. I’ve been craving all things bananas for some reason(but not just a plain, straight-up banana, weird right?) That frosting sounds awesome. I love how simple it is 😀

  5. Skillful Cook Logo

    oh my! thank you so much for trying out our recipe! This is one of our faves, the peanut butter frosting really takes the “cake” sorry bad joke 😛
    looks wonderful! 🙂

    1. Skillful Cook Logo

      lol… so true. Your frosting looks so much lighter than mine, I wonder if it had something to do with the type of peanut butter? Regardless, it was wonderful!! Thanks for the inspiration to try a vegan frosting. You know you’ve done well if you can convince me to do that. 🙂

  6. Skillful Cook Logo

    I love that this recipe uses whole wheat flour. I’ve been using it in cookies, cakes and muffins when possible and it has worked out well. It’s great too that it only has a small amount of refined sugar.

  7. Skillful Cook Logo

    Nothing goes together better than peanut butter and banana! This looks SO moist and delicious 🙂 I’ll be excited when this week is over and a huge work project will be out of my hands!