Banana Cake with Vanilla Frosting
Banana Cake – put those overripe bananas on your counter to good use with this simple and delicious Banana Cake recipe! It’s topped with a delicious vanilla frosting and makes a perfect treat or snack for anytime!
Today’s recipe is brought to you thanks to a huge bunch of overripe bananas I had last week. I’m normally a good banana eater as are my kiddos, but we weren’t able to eat them in time before the brown spots started to set in.
We were otherwise detained because our house was hit with the dreaded stomach bug. ????
It started on Wednesday afternoon with my daughter. We thought maybe it was just her, and that she had just possibly eaten something bad, until it hit me next at 2 in the morning. Followed about 15 minutes later by my oldest!
It eventually took out my husband as well. The ONLY one that survived it was the baby, and I’m just contributing that to the magic powers of breastmilk! I nursed him through it all, and he managed to skate on by.
If it’s not that, then he is just an extra lucky kid and I’m taking him to help me pick out lottery tickets next week!
Once we were all back to normal, I had a lot of food in our fridge that needed to be cooked pronto before it all went bad. Be on the lookout for a yummy pork tenderloin recipe coming soon. ????
A big bunch of overripe bananas were staring me down and I decided it was time to make my favorite banana cake, which I’m surprised I haven’t shared on here before! I make Butterscotch Banana Bread or Kale, Apple, and Banana Smoothies a lot with overripe bananas, but this Banana Cake is a family favorite!
I hope you love it, too!

Banana Cake with Vanilla Frosting
Ingredients
To make the cake:
- 2/3 cup white granulated sugar
- 1/2 cup sour cream
- 1 egg
- 2 Tablespoons butter, softened
- 2 medium bananas, mashed
- 1 teaspoon vanilla extract
- 1 cup all purpose flour
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
To make the frosting:
- 2 Tablespoons butter, softened
- 1 1/4 cups powdered sugar
- 2-3 Tablespoons milk
- 1/2 teaspoon vanilla extract
Instructions
- Preheat oven to 350 degrees. Spray an 8x8 baking pan with cooking spray and set aside.
- Using an electric mixer, beat together the sugar, sour cream, egg, and softened butter over medium speed until combined. Add in the mashed bananas and vanilla extract.
- Stir in the flour, baking soda, and salt by hand, mixing until just combined. Pour into the prepared baking dish and bake in the preheated oven for 22-28 minutes, until top is golden brown and a toothpick inserted in the center comes out clean.
- Cool completely on a wire rack.
- To make the frosting, beat the butter, powdered sugar, milk, and vanilla extract with an electric mixer until smooth. Evenly spread over the cooled cake and serve. I like to sprinkle the frosted cake with a little cinnamon for an extra boost of flavor and color, but this is optional! Refrigerate any leftovers.
If you like this Banana Cake Recipe, then you might also like:
Skinny Chocolate Cake
Lemon Poppy Seed Bundt Cake
This looks so delicious for a a nice summer time dessert, banana is always a favorite here at our house!
This is such a perfect comfort food dessert. Grew up enjoying it.
I actually have some overripe bananas I could use for this, it sounds delicious
Best and easiest banana cake ever! At the first bite, I was won over. That’s how good it is! So light and delicious! Thank you Ashlyn for such an incredible recipe and that all your recipes are so easy to follow and I don’t have to search for ingredients at the grocery store. You make cooking simple, enjoyable and delicious!
This is the very best banana cake I have ever tasted! Wonderful recipe, light and delicious. Don’t hesitate to use your ripe bananas on this recipe, it’s well worth it. You’ll want to make this again and again for your family and to give away. I’ve gotten great compliments on it.
Hi Ashlyn! Do you think this frosting would work with your butterscotch banana bread? Plan to make today thank you!
That sounds delicious! Let me know how it turns out if you try that!
Can I make this in a loaf pan?
I have not tried it that way, but I think it should work fine! You might just need to add in more time for baking.
This sounds so good definitely need to try!
Omg I love soft cakes, this sounds so yummy, I need make it
My kids will love this! They get tired of banana bread sometimes. Thank you!
I made this cake sugar free with monkfruit. I also used half ap flour and half carbquik to lower the carbs..added a little cinnamon and nutmeg and frosted with sf bananna pudding mix with sf cool whip..yum yum yum
Omg I have never tried banana cake with frosting before! Just Banana bread… and my kiddos are obsessed with it. So I can only imagine their faces when they taste and see this! I will definitely give this a whirl with my little girl this weekend.
Okay, this literally made my mouth water just by the sight of it. It looks so pretty and super moist!
I’ve made this cake many, many times now and it’s always a hit. Such a nice change from banana bread. It’s a very easy and forgiving recipe. For example, the last time I made it, I didn’t have sour cream on hand so I used plain Greek yogurt instead and it turned out fine. I’m very happy to have found this recipe. Thank you!
Can I make this cake in a 13 x 9 inch pan if I double the recipe?
Yes!