The BEST Banana Bars

The BEST Banana Bars with Cream Cheese Frosting is the perfect sweet treat! Use those ripe bananas for something other than banana bread!

This soft banana cake is baked in half sheet pan and is sweet, moist and full of delicious banana flavor with a smooth cream cheese frosting!

Perfect piece of soft banana cake with cream cheese frosting and half sheet pan of cake

The BEST Banana Bars wit Cream Cheese Frosting are the BEST thing you will ever eat! They are easy to make and so darn delicious. They are dangerously good…I could eat the entire pan!

The Bananas

Once you make The Best Banana Bars with Cream Cheese Frosting you will never use those ripe bananas for anything but these Banana Bars! So long banana bread!

You will need to use ripe-really ripe bananas for this recipe! Did you know that the more ripe/black and spotted your bananas are the more strong of a banana taste they have? Not to mention they mash up much easier for baking!

So let those bananas sit out for a few days and do not throw them away (or make banana bread)- make The BEST Banana Bars!

The Banana Bars Cake

Preheat your oven to 375 degrees. You can use your stand mixer with the paddle attachment, a hand mixer or mix the cake by hand.

You will cream your butter and sugar together first. Then, add in your eggs, sour cream and vanilla and mix well.

The sour cream seems weird, but I promise it doesn’t make the cake taste weird it just makes it super soft! (Try my Super Soft Sugar Cookies that are made with sour cream- you won’t be sorry!)

Last, add your baking soda, salt and flour. Mix well.

Pour your cake batter into a greased half sheet pan. Bake for 20-25 minutes.

The cake is done when the edges of the cake are golden brown and pulling away from the edges of the pan. A toothpick will come out clean when poked in the center of the cake when the cake is done.

Take the cake out of the oven when it is done and let it cool completely while you make the frosting.

The Pan for The BEST Banana Bars

You will need a half sheet pan to make these banana bars. It measures about 18×13 inches on the outside of the pan, and is about 1 inch high.

This is the half sheet pan I love and use:

Cream Cheese Frosting

All you need for the perfect cream cheese frosting is softened butter, softened cream cheese, vanilla extract and powdered sugar.

Using a stand mixer with the whisk attachment, a hand mixer or by hand, add all of the ingredients together and mix well!

TIP: Make sure the cream cheese and butter is fully softened (I let mine sit out on my counter for a good hour or more). If they are not fully softened your frosting will be lumpy- still yummy but lumpy!

Cream Cheese Frosting, smooth and creamy in the mixer with a whisk attachment

Once the cake bars have cooled completely, frost the bars, cut, serve and enjoy!

Banana Bars, banana cake in a half sheet pan with cream cheese frosting

The BEST Banana Bars with Cream Cheese Frosting are waiting for you! Hurry and go make them today!

For another recipe to use those ripe bananas (that isn’t banana bread) try my Soft Banana Cookies with Cream Cheese Frosting (they do not disappoint!).

For another delicious treat, try my Yummy Carrot Cake (this one is totally healthy too since it is made with real carrots…ha!). Also, try my Lemon Sheet Cake or Sheet Pan Apple Pie.

Here are some products I used to make this recipe:

“As an Amazon Associate I earn on qualifying purchases.”

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4.8 from 5 votes

The BEST Banana Bars

The BEST Banana Bars you will ever eat! Sweet, moist and full of delicious banana flavor with a smooth cream cheese frosting!
Makes 1 half sheet pan of Banana Bars
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings 20 servings (approx.)


Banana Bars

  • 1/2 cup butter, softened
  • 1 1/3 cups white sugar
  • 2 large eggs
  • 1 cup sour cream
  • 1 1/2 tsp vanilla extract
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 2 cups flour
  • 3 medium ripe (the more ripe the better), bananas, mashed – with no lumps (Should be a little over 1 cup)

Cream Cheese Frosting

  • 8 oz. cream cheese 1 block of cream cheese
  • 1/2 cup butter, softened 1 stick of butter
  • 1 1/2 tsp vanilla extract
  • 2 to 3 cups powdered sugar add as much as you like to get it as thick as you like


Banana Bars

  • Preheat oven to 375° and grease your half sheet pan.
  • In a mixer, beat the sugar and butter together until smooth.
  • Add in eggs, sour cream and vanilla. Mix well.
  • Add in flour, baking soda, and salt. Mix well.
  • Add in mashed bananas and mix until fully incorporated.
  • Pour batter into the half sheet pan. Bake 20-25 minutes. The edges should start to brown and pull away from the corners of the pan. You will know it is done when you poke a toothpick in the center of the cake and it comes out clean.
    You can make the frosting while the bars bake, or are cooling.
  • Cool cake/bars completely before frosting.

Cream Cheese Frosting

  • In a mixer, add all of the frosting ingredients and mix until smooth. Make sure your butter and cream cheese are softened completely or your frosting will be lumpy!
  • Frost the Banana Bars after they have cooled completely. Cut into bars and enjoy!
Pinterest banana bars


  1. How do you store leftovers?

    • Beth, The Butcher's Wife

      Hi Adrienne! I just cover my pan and leave it on the counter! I don’t ever refrigerate anything with cream cheese frosting and we’ve never gotten sick yet….but if that worries you just cover it up tightly and put it in the fridge! 😊

  2. Hi love the recipe just wondering if I can add raisins and walnuts if so how much
    Thank you

    • Beth, The Butcher's Wife

      Hi Jackie! I’m so happy to hear you love it! You absolutely can add raisins and walnuts…. I would add at least a cup of each … but more or less to your liking! ❤️

  3. 4 stars
    Made this yesterday and absolutely love it! Sooo tasty and easy to make.
    Mine came out more dense like a banana bread rather than a fluffy cake though. Just wondering if you knew what I could have done wrong?
    Regardless its still amazing and I will be making it again for sure!
    Thank you 🙂

    • Beth, The Butcher's Wife

      Hi Kiera! I’m so glad you loved them! I’m sorry to hear it was not fluffy!!! If the cake is over baked or over-mixed it definitely will be more dense…also if your baking soda is older it can leave a cake not fluffy! Always make sure your butter is softened (at room temp) and measure the flour accurately as too much flour will definitely leave it dense! Try those tips and let me know how it turns out next time! Thank you so much for stopping by the blog and trying the recipe!!! And thank you for reaching out….I hope we can get it figured out!☺️😘

  4. Marie I Miller

    I made these and my co workers raved about them. They are the best I have ever tasted also and I will be making them many more times.

    • Beth, The Butcher's Wife

      I’m so happy to hear they were a hit!! Thanks for taking the time to comment and thank you for trying the recipe!❤️😘

  5. 5 stars
    I made this but misread the pan size and made it in a quarter sheet cake pan. Took a little longer but I think it turned out great. We’ll see when my coworkers are treated to it tomorrow! Frosting is the bomb!

    • Beth, The Butcher's Wife

      I’m so glad they turned out great in a quarter sheet pan! Let me know how the coworkers like it (they are lucky to work with you)….and the frosting is so yummy!! Thanks for stopping by the blog and for trying my recipe and for taking the time to comment! Enjoy the treat at work!😘😘

      • Hi there! I made this as dessert for Father’s Day prime rib dinner and it’s cooling now and the frosting is in the mixer. How do I store it? I’m thinking the refrigerator but afraid it may dry out?

        • Beth, The Butcher's Wife

          Hi Shalana! I am so excited you made them!!! I don’t ever put our banana bars in the fridge and we have never got sick! But if you are worried about the frosting you can!!! Let me know how you like them!❤️😘

  6. 5 stars
    These turned out really good! It was my first time making the cream cheese icing so next time I’ll add more powdered sugar and more vanilla (I ran out of vanilla). Yummy, bringing them into work tomorrow

    • Beth, The Butcher's Wife

      Hi Emily! Yay!!!! I’m so glad you tried them and they turned out good! The frosting can take a time or two to get it just how you like it! The bars are yummy and are perfect for work since they feed so many! Let me know how everyone likes them! Thank you for stopping by the blog and taking time to comment!! I hope they are a hit at work!🤗😘

  7. Nancy Howell

    The cake turned out great. I did add roasted walnuts.

    • Beth, The Butcher's Wife

      Nancy I am so happy to hear it turned out great!!!! The roasted walnuts sound so tasty and like the perfect addition! Thank you so much for trying the recipe and taking the time to comment!!! I love hear from people that have tried my recipes!!! Thank you so much!❤️😘

  8. Can I use lard or shortening instead of butter?

    • Beth, The Butcher's Wife

      Hi Crystal! I have used shortening to replace butter in baking and you end up with basically the same results…you just miss out on some of the butter flavor! Just swap out the butter for shortening and use the same amount! As for lard, I have never used it in cakes so I have no advice or experience with it! Let me know how it turns out! Happy Baking!❤️

  9. 5 stars
    I must review this recipe- I have made it once a week for 14 weeks! My family & neighbors can’t get enough of it!!! It turns out perfectly every time. It is my “go to” dessert. I can’t give enough stars for this… the title is perfect!!!!

    • Beth, The Butcher's Wife

      Jackie!!!! Thank you so very much!!! You’re sweet comment and review made my day!!!! I am so happy these have become a favorite at your house (and in your neighborhood)! And I really love that you have made them every week for 14 weeks…I think I need to be your neighbor!❤️They really are the BEST and I’m so glad you agree! (Try my Banana Cookies too… I can’t promise they are on the same level as the Banana Bars but they come pretty close!)
      Happy Baking!❤️😘

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  12. 5 stars
    This recipe is so amazing …. I use a 9 x 13 pan and I cooked it like five minutes longer it was fine. I’ve never had a banana recipe so delicious!

    • Beth, The Butcher's Wife

      Hi Maribel! I am so happy to hear that they turned out so great! They are so delicious and my go to recipe for using my over ripe bananas…thank you so much for the comment!❤️😘

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  15. These were just fabulous. I shared with a few of my neighbors who just raved about this cake/bar. Thanks so much for sharing this wonderful recipe.

    • Beth, The Butcher's Wife

      Nancy! Hearing this made my day! I am so glad you like the Banana Bars and that you shared them with your neighbors who also liked them! I need a neighbor like you! Thanks for making my recipe and the sweet comment! ❤️😘

  16. Farrah Garrison

    I did try the 9×13. It started to brown but I covered with foil and it was fine. Next time I will do at 350. I loved this recipe ❤️. It tastes like Trader Joe’s banana cake but even better. That cream cheese frosting is the bee’s knees!!

    • Beth, The Butcher's Wife

      Farrah I am so happy to hear you loved it! It’s a favorite at our house and that frosting is so yummy I could eat it with a spoon! Thanks for the sweet comment and for trying the recipe! ❤️😘

  17. 5 stars
    Another awesome recipe. I was able to find a jelly roll pan. Your banana recipes are my go to when I have ripe bananas!

    • Beth, The Butcher's Wife

      Beth (have I told you that you have the best name 😉)… I am so so happy to hear you found a pan and loved the banana bars!!! I never ever make banana bread… the bars or cookies are my go to every time! Thanks for the sweet comment … if you try more recipes let me know!❤️😘

  18. Can I make these in a 9×13 dish?

    • Beth, The Butcher's Wife

      Hi Beth! I haven’t tried it but I can’t see why it wouldn’t work! They will probably just need to cook longer because they will be thicker! Let me know how it turns out! 🤗

  19. Can these be made in a 9×13 dish?

    • Beth, The Butcher's Wife

      I have never tried it… I can’t see why not… just plan on it needing longer to bake since it will be thicker! I’ll be interested to see how it turns out so let me know!🤗

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