Banana Bread Sheet Cake

Banana Bread Sheet Cake
This Banana Bread Sheet Cake is a moist and delicious cake full of banana flavour! Perfect for dessert, snacking and even as a birthday cake!
I know there are a million different banana bread recipes out there, and we all have our favourite, but when there’s a new amazing recipe found it must be shared. It is our duty don’t you know?! That’s what this Banana Bread Sheet Cake is. Actually, it’s better known as THE BEST banana cake ever ever ever. No word of a lie. This is the kind of cake that will keep you coming back for more.

About this recipe:
This cake is soft, banana-y, and moist. Even at day 3, this cake was SO moist. With a recipe that has 4 ripe bananas and 1 cup of sour cream, so you know it’s going to be good. This banana sheet cake recipe is a keeper.

Perfect for Parties too!
If you like, you can top this cake with classic vanilla buttercream icing, chocolate buttercream, marshmallow buttercream or this creamy cream cheese frosting that I used on my Hummingbird cake. I didn’t think it needed it with the addition of the chocolate chips, but frosting is always a nice touch. This banana cake would be a perfect recipe for a birthday cake, served at brunch, or at large gatherings.

Banana Cake Recipe Tips
- BANANA: Use overripe brown bananas. It’s a great way to use up brown bananas!
- SOUR CREAM: This cake calls for sour cream but you can also use use plain Greek yogurt or a 6% Balkan style plain yogurt instead.
- CHOCOLATE CHIPS: You can use semi-sweet chocolate chips, milk chocolate chips or even dark chocolate chips.
- ADDITIONS: Feel free to add chopped pecans or walnuts to the cake, about 1/2 cup.
- PAN SIZE: Use a 9 x 13 baking pan. Make sure to prep the pan before baking, either by greasing it with butter or using a baking oil spray.
- STORAGE: This cake can be kept at room temperature. Just make sure to cover it with plastic wrap, or store leftovers in an airtight container.
Love Sheet Cakes? Here are more to try!

Banana Bread Sheet Cake
Ingredients
- 3 – 4 overripe bananas mashed about 1 1/2 cups
- 2 cups white sugar
- 3/4 cup butter at room temp
- 2 large eggs
- 1 1/2 tsp vanilla extract
- 3 cups all purpose flour
- 1 1/2 tsp baking powder
- 1 1/2 tsp baking soda
- 1 tsp cinnamon
- 1/2 tsp salt
- 1/2 cup milk whole milk or 2% milk
- 1 cup sour cream or Greek yogurt
- 1/2 cup mini chocolate chips
Instructions
- Preheat your oven to 350 degrees F.
- Grease a 9 x 13 baking pan with butter or a baking spray, making sure to cover the sides of the pan too. Set aside.
- Use a stand mixer to cream together the butter and sugar (I use the paddle attachment).
- Add the eggs, mixing in one at a time. Then add the vanilla and mix until smooth.
- In a separate large bowl mix together the flour, baking powder, baking soda, salt and cinnamon.
- In a separate small bowl mix together the milk and sour cream.
Putting it all together:
- Add 1/3 of the dry ingredients to the butter mixture, followed by 1/3 of the milk/sour cream mixture and repeat until it is all combined.
- To this batter add the mashed bananas and mini chocolate chips, then combine.
- Pour the banana cake batter into the prepared 9 x 13 cake pan.
- Bake for 1 hour, or until a toothpick inserted into the centre of the cake comes out clean. (Check the cake after 30 minutes to see how it is baking.)
- Cool and enjoy!
- Note: If you’re going to add frosting, make sure to let the cake cool completely before adding it to the top of the cake.
Recipe inspired by Just a Pinch
More Banana Recipes to Try!
Banana muffins, the best banana bread, loaves, baked oatmeal, cakes and more.
I hope you love this easy banana cake as much as we do! Have a delicious day!







I grew up with my mom making a recipe like this. Brings back memories and looks delicious!
It must be a banana/chocolate day kind of day! Looks like a few of my favourite bloggers are sharing theirs! I posted mine too today! 🙂
Wow Jo-Anna! This sounds so good and I haven’t tried a banana cake recipe before!!! Love it!!!!!
This looks so good Jo-Anna! There is nothing better than moist banana bread.! I love that this recipe is a sheet cake too….it might last longer than a day with 2 hungry teenagers and their friends at my house! Have a lovely weekend! Angie xo
i can’t wait to try the banana bread sheet cake and the seamy chicken and green chili enchiladas
they look really tasty.
thanks for sharing the recipes with me.
I haven’t tried a banana bread cake before either! It looks so yummy. I need to make this recipe!
Woooohooooo !!!!!! Thank you for sharing this. You just made my day. My banana bread day. I might make this every day for the rest of my life, just sayin’. xx
Thank you so much for sharing this recipe! I love bananas and it makes me happy that I can try out recipes like this. 🙂
Love this idea of baking a sheet cake rather than a loaf (plus you get way more banana bread out of the deal).