Fresh Banana Frosting Recipe for Betty’s Banana Layer Cake

Fresh Banana Butter cream Frosting recipe Looking Down Bake This Cake

Welcome to the wonderful world of Fresh Banana Frosting! This homemade vintage frosting is made with a fresh banana, buttercream and touches of cream cheese and lemon. The old-fashioned banana cake is filled with frosting and, you guessed it, a spread of fresh bananas slices. I’m not sure you could get any more vintage charm from a cake than with this combo of cake, fruit and frosting. :)

One of our Facebook guests suggested Banana Buttercream Frosting (thank you to pro baker, Joanna Caujolle-Hall!) to spread on our Banana Layer Cake and I think that was the best idea for this little charmer of a cake! Talk about doubling (or tripling) up the fresh flavors — with bananas in the cake, bananas in the frosting and bananas between the layers! whoa!

Banana Layer Cake on black plate with cake in BG BakeThisCake

We’re using the 1940 “Banana Frosting” recipe in “The Culinary Arts Institute Encyclopedia of Cooking and Homemaking” via Pamphlet #3 edited by Frances Troy Northcross.

Culinary Arts Institute Encyclopedia of Cooking BakeThisCake

Even back in 1897, when this article appeared in “Food, Home and Gardens” (Vols 1-3, p 173), reciting a discussion in Scientific American, the world knew that bananas were comin’ on strong and here to stay. I just know I LUV EM and I think they might be one of nature’s most amazing and perfect fruits.

Banana Industry Discussion 1897 BakeThisCake

Get a Feel for the Banana Ripeness Factor! We’re using one spotted ripe banana for this little frosting project so, if your banana is not ripe, maybe you could try putting it out in the sunny garden for a bit or putting it in a bag with a little slice of apple to try to ripen it. We’re also using a few “regular” bananas for the center filling. So check out your bananas and get them spot on (get it?) if you can…or what the heck, just go with what you have. haha!

Ripe Spotted Banana for Fresh Banana Frosting BakeThisCake

Vintage Recipe Modification Alert! We changed it up just slightly to add a tad more lemon juice and some cream cheese to tone down the sweet factor. Okay, we also kicked in a little fine quality vanilla extract to mellow it out. Otherwise, this frosting remains simple and classic and forms the basic outline for a gazillion fresh frosting recipes even in modern cookbooks. Although my personal taste could go with even less sugar, all the tasters agreed that it is perfect at this sweetness stage so let’s go with the recommendations and let ‘er rip! :)

Tools Needed:
Large Mixing Bowl
Small bowl or cup (for lemon juice)
Electric mixer
Measuring cups and spoons
Optional: Juicer (for lemon juice, substitute muscle power)
Optional: Small Strainer (for lemon juice)

Fresh Banana Frosting Ingredients:
1/2 cup Mashed Bananas from about 1 large ripe banana
16 ounces (1 pound, about 3-3/4 cups, usually 1 box) Powdered Sugar
1/4 cup (1/2 cube) Unsalted Butter
4 ounces (1/2 cup, usually half of large foil package) Cream Cheese
1 teaspoon Vanilla Extract, fine quality
2 or 3 large bananas (not overly ripe, for slicing between the layers)

Directions:

Mash a large banana well with a fork, remembering that every little chunk of fruit will show in the final frosting but hoping for some tiny bits to prove it up as the real deal. haha!

Mashing bananas for buttercream frosting BakeThisCake

If the banana was ripe there should be some little black flecks in the puree.

Bananas Mashed for Fresh Banana Buttercream Frosting BakeThisCake

Microwave for a few seconds to take the chill off but not melting (think spreadable):
1/4 cup unsalted butter (1/2 cube)

Room Temperature Butter for Banana Buttercream Frosting BakeThisCake

Measure into a large mixing bowl:
1 pound (16 ounces, usually 1 box) powdered sugar

The lazy way to sift powdered sugar is by beating it for a few seconds in the mixer. ha! So, unless you want to be sifting this powdered sugar, give it a 30-second whir with the electric mixer.

Lazy Sifting of Powdered Sugar for Frosting BakeThisCake

Add the room temp butter and banana puree to the powdered sugar in the mixing bowl.

Adding banana puree and butter to powdered sugar BakeThisCake

Dribble into the mixing bowl:
1 teaspoon fine quality vanilla extract

Vanilla Extract for Homemade Frosting BakeThisCake

Microwave for a few seconds to take the chill off, chunk it up and add to the mixing bowl of ingredients:
4 ounces (half of a large foil packet) of cream cheese

Cream Cheese for Banana Buttercream Frosting BakeThisCake

Add into the mixing bowl a teaspoon of fresh lemon juice:

Squeezing lemon juice for Banana Frosting BakeThisCake

Beat all ingredients for about 3 minutes until nice and fluffy…

Banana Cream Cheese Buttercream Frosting BakeThisCake

Now taste it to be sure you have the consistency and flavor that you like. If it is too sweet for you, you could add a little more cream cheese. I don’t think it will need more sweetening, but since the original recipe does not have the lemon and cream cheese, you could add in some more powdered sugar to taste (that you should sift into the bowl with a little strainer to be sure it doesn’t cause lumping).

Finished Fresh Banana Buttercream Frosting BakeThisCake

Here is the spreading consistency in a close-up of the frosting….

Banana Frosting close up BakeThisCake

Let’s Fill and Frost This Baby!

Make sure the banana cake is cool and the bottom layer cake is level before frosting.

Banana Cakes Cooling  BakeThisCake

Cut away any hump on the bottom layer by slicing it away (and saving it for morning coffee snacks, yum-o!). I like leaving the top cake with a little gentle mound (but you can cut that away too if you want a perfectly flat topped cake.

Spread a layer of banana frosting on the bottom layer about 1/4 inch thick.

Spreading Banana Frosting Between Cake Layers Bake This Cake

Now we’re using a few fresh bananas that are not overly ripe for the center filling (and maybe some on the top if you like that idea).

Bananas for Banana Cake Filling BakeThisCake

Slice about 2 or 3 fresh bananas and push them very gently into the frosting that you’ve spread on the bottom layer of the cake.

Banana Filling for Banana Layer Cake Bake This Cake

If you are doing a “bare sides cake” without frosting the entire cake, spread a thin layer of frosting over the BOTTOM of the top layer and set it on top of the banana slices layer. Frosting to frosting, as they say. This will ensure that the two cakes stay together when you’re serving, otherwise, they might separate on the plate.

If you frost the whole outer cake, you might want to leave this under-frosting step out in order to have enough frosting to cover the outer cake sides (and to prevent frosting overload) — so if you skip this double frosting step just push the banana slices a little deeper into the frosting for a nice “tuck”. :D

Frosting underneat of top Banana Cake for Filling BakeThisCake

Gently push down on the top cake to be sure the banana slices become enveloped in yummy fresh frosting. Go ahead! Let them droop out over the sides a bit for an extra yum factor!

Banana Cake Ready for Top Frosting Bake This Cake

Spread the top of the cake with frosting. I like to see a little cake and I think it looks a tad more charming in an old-fashioned way with the sides “open for viewing”. haha!

Spreading Frosting 2 on Banana Layer Cake BakeThisCake

You could even add some more banana slices to the top or a few at just top center for a little more cuteness. Because top-side bananas might turn brownish on you, you should only add top banana slices if you are going to serve the cake immediately (or you could try adding a few drops of fresh lemon juice mixed with a little powdered sugar to help keep any top slices of banana from going brown). :D If you have any other tips for keeping banana slices from going brown, please let us know in the Comments Section. Thanks!

Betty's Banana Layer Cake with Fresh Banana Cream Frosting BakeThisCake

Just oogling a close-up of the frosting as the cake is sliced for family and guests…

Banana Cake Frosted Looking Down Close BakethisCake

I hope you’ll find this vintage cake deliciously moist and vibrant and a total throw-back to the early part of the American baking scene that keeps on giving — right up to modern day table time!

Banana Layer Cake with fork2  on black plate BakeThisCake

Thank you so much for joining me with our little DIY frosting party.

I hope you’ll bake and frost one of your own vintage banana layer cakes and let me know how it goes. If you snap photos, show us your work on our Facebook page.

Also, hoping you’ll follow us on Pinterest ! It’s so inspiring to see all your cool photos and tips! :)

Leslie Macchiarella photo by Julie Macchiarella

Guard Cat BakeThisCake

Eddie, our Door Guard

Icarus with My Slipper  BakeThisCake

Icarus with His/My Slipper

Flower Bouquet Pink White Purple BakethisCake

Bright Bouquet of Summer Flowers

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24 thoughts on “Fresh Banana Frosting Recipe for Betty’s Banana Layer Cake

  1. Omg!! You inspired me to drive to the store & pick up 2 ingredients I was missing! My cake turned out absolutely delicious! It’s heavenly :) & my husband loved it. Thanks for sharing this wonderful recipe :)♡♡ I’m now more inspired to try many more classic vintage cake recipes..also target sells Swans down cake flour which was great!

  2. This sounds delicious and looks easy (2 of my requirements!). What would you suggest be the measurements if I make cupcakes instead of a double layer cake? I’m not opposed to having leftover frosting, but just in case.

    • Hi, Julie. So glad your fresh banana cake turned out perfectly. Now to the frosting. This frosting should have a smooth and creamy texture (as in the final photos) but it is not stiff or super fluffy like a bakery frosting (often made with vegetable-type shortening). Could it improve with a chill in the fridge and then a little more whipping (if the cream cheese and/or the butter was a little too warm)? Or perhaps just try adding in a little more sifted powdered sugar with a little more beating to get a thicker consistency.

    • Hi, Stephanie. I haven’t actually held this frosting for later use so you’ll be the trendsetter here. I’m guessing it will hold covered tightly in the fridge though you may have to let it sit on the counter a bit and give it a last minute beating. Happy birthday to hubbie!

  3. Using your frosting recipe on my daughter’s birthday cake! She will be 5 on May 6th and wanted a strawberry cake with banana frosting.

  4. Just tried this tonight ✌️ 16 year old birthday… Wanted a brownie cake with a layer of peanut butter with banana frosting. :-) This recipe came in very handy and tasted great.

  5. I will be trying your frosting on Sunday. My daughter is turning 11 and she would like a chocolate banana cake. So I am making a chocolate cake with your banana frosting. I can’t wait to try it and have her as well. Thank you for the recipe.

  6. I made your banana cake & this frosting for my 55th birthday on March 25. I totally loved every single bite. The frosting is killer!!!! I can’t wait to try it out at my next church function. Thank you for sharing!!

  7. looks so yummy and i can’t wait to try the frosting as filling for my chocolate cake. can i also use this to ice whole cake and cover it with fondant? or this is too soft?

    • Hey Wilma, Glad u stopped by. I’m a bit uncertain if it will hug tight enough as a full spread under fondant (but it sounds like a yum combination). Perhaps if you spread it thin and chill it well it might work. If u try that, let us know. :) Leslie

      • This frosting was absolutely AMAZING! It had exactly the taste I’ve been longing for. I will definitely make this again.

        Thanks for visiting and I hope you enjoy the Outback Bushman Honey Wheat Bread. Please visit again and let me know if you enjoyed it.

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