Banana Cake with Vanilla Frosting

This is my second month participating in The Secret Recipe Club. Each month, participating bloggers are assigned another blog, and you choose a recipe from that blog to make and blog about. Until the posting day, you keep secret which blog you are assigned. This month I was assigned the blog ButterYum. ButterYum is written by Patricia, a mom of 4, and has many delicious recipes for everything from main dishes to appetizers to baked goods.

After looking through many of Patricia’s recipes, I decided on one that had initially caught my eye, a banana cake with vanilla frosting. The original recipe calls for using vanilla bean paste in the frosting so that you have vanilla bean frosting, but I didn’t have any on hand. As Patricia suggested, I used vanilla extract instead and it made a good substitute. The banana cake is moist and full of banana flavor, and the vanilla frosting adds a little extra sweetness to make this more like a cake than banana bread. Having never made a banana cake before, I enjoyed having something a little different to snack on with my evening cup of tea.

One year ago:  Dulce de Leche Cheesecake Squares

Banana Cake with Vanilla Frosting

Printable Recipe

Makes 9 servings (one 8 x 8 or 9 x 9-inch pan)


For the cake:

  • 2/3 cup sugar
  • 1/2 cup sour cream
  • 1 egg
  • 2 tbsp. butter, softened
  • 2-3 mashed super ripe bananas (about 3/4 cup)
  • 1 tsp. pure vanilla extract
  • 1 cup flour
  • 1/4 tsp. salt
  • 1/2 tsp. baking soda

For the frosting:

  • 2 tbsp. butter, softened
  • 1/4 cup heavy cream
  • 1/2 tsp. pure vanilla extract
  • 1 1/4 cups confectioner’s sugar


  1. Preheat the oven to 375 degrees F (or 350 degrees F if using a glass pan).
  2. Cream together the sugar, sour cream, egg, and 2 tablespoons softened butter. Add mashed bananas and 1 teaspoon vanilla extract and mix to combine. Add flour, salt, and baking soda; mix well. Pour into greased pan.
  3. Bake for 20-25 minutes until a toothpick inserted in the center comes out clean. Cool completely before frosting.
  4. To make the frosting, in the bowl of a stand mixer fitted with the paddle attachment, cream together butter and confectioner’s sugar until smooth. Slowly add the heavy cream; stir until smooth. Stir in the vanilla extract until fully incorporated. Spread on cooled cake.

Recipe very slightly adapted from ButterYum

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  1. Mmm, I love a good banana cake especially if it has vanilla frosting on top! I wish I had a piece to go with my coffee this morning!

  2. I love banana cake, but I’ve never tried it with frosting. Your version looks delightful. Will try it out the next time I have a hankering for banana cake!

  3. I love banana cake, this version looks great!

  4. Yummy – I love anything baked with bananas. I’ve actually got about 5 over-ripe ones hanging out in the freezer, so this would be a great way to put those to use!

  5. I am loving bananas right now. This looks delicious and this is the kind of cake I feel ok having a slice with my morning coffee. YUM!

  6. What a nice creamy rich treat!

  7. What a great cake to enjoy after dinner! I’m sure my oldest would love this one since he is my banana bread lover, and really any type of cake is right up his alley!

  8. ***SMILE***
    I was just strolling along through all the reveal posts and I had a feeling when I saw “banana cake” that you were assigned my blog. Great presentation! So glad you liked the cake.

    Hope you’ll stop by and see my SRC post,

  9. This looks like a delicious dessert. We just love Bananas! Thanks for sharing and it is fun cooking with you in the SRC!
    Miz Helen
    Southwest Corn and Potato Soup

  10. I love making other things with my soft bananas other then banana bread! :-0)

    Thanks for being a part of GROUP B: come by and see my frozen breakfast burritos from today’s SRC Post.

  11. This looks great – I always like different recipes that involve banana!

    I am in Group C so be sure to check out my blog when it’s our turn!

  12. Mmm…banana and vanilla sound great together and your cake looks delicious. I did my SRC on homemade vanilla extract.

  13. Love banana cake and vanilla frosting is the perfect topping,

    If you haven’t already, I’d love for you to check out my group “A” SRC recipe this month: Levain Chocolate Chip Walnut Cookies.

    Cook Lisa Cook

  14. That is one great looking cake. Banana cake is my favorite way to use up ripe bananas.

  15. Yum! Looks great! Fun to participate in SRC with you!

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