Banana Cake

This banana cake is the best! Not banana bread. Not a one-bowl shortcut. A real cake, moist, warmly spiced, and built on a base of nutty browned butter that most recipes don’t bother with. The frosting is a salted caramel buttercream that tastes like you spent all afternoon in a candy shop. The whole thing happens to be gluten free, but you’d never know it.

Below I’ll walk you through exactly what makes this one different, and why every step actually matters.

Why This Recipe Works (And What Sets It Apart)

Most banana cake recipes you’ll find online are straightforward: mash some bananas, mix with butter and flour, top with cream cheese frosting. That’s fine. But this recipe stacks three upgrades on top of that baseline that genuinely change the result.

Browned butter instead of plain melted butter. Browning butter takes about 5 extra minutes and adds a deep, nutty, almost toffee-like flavor that regular butter simply can’t match. It pairs with ripe bananas the same way caramel pairs with apples. They were made for each other. Most banana cake recipes skip this entirely. It’s the single biggest flavor upgrade you can make.

Coconut sugar instead of white sugar. Coconut sugar has a naturally caramel-like, molasses-adjacent flavor. It deepens the overall taste of the cake in a way that white granulated sugar doesn’t. You can use light brown sugar and get a similar result, but coconut sugar is the move if you have it.

Salted caramel frosting instead of cream cheese frosting. Nothing against cream cheese frosting. It is a classic for a reason. But caramel buttercream with flaky sea salt is a bolder, more interesting partner for this cake. The salt cuts the sweetness, the caramel echoes the browned butter, and the whole thing feels more intentional.

The result is a gluten free banana cake that tastes like it came from a bakery that actually cares.

Ingredients

• 2 sticks unsalted butter, browned
• 1 ½ cups coconut sugar, or light brown sugar
• 1 cup milk of choice
• 2 eggs
• 1 ½ cups mashed ripe bananas
• 1 tsp vanilla extract
• 2 cups gluten free flour, see note
• 1 tsp baking soda
• 1 tsp cinnamon

Frosting

• 1 ½ sticks unsalted butter, room temperature
• 2 ½ cups powdered sugar
• ½ cup caramel sauce
• ½ tsp flaky sea salt

Step-by-Step Instructions

• First, preheat your oven to 350 degrees Fahrenheit. Line a 9 inch square pan with parchment paper.
• In a large mixing bowl, add the browned butter, coconut sugar, milk, eggs, mashed bananas, and vanilla. Stir to combine.
• Then, add in the gluten free flour, baking soda, and cinnamon. Stir together.
• Pour this cake batter into the lined pan. Bake for 35 to 38 minutes, or until a toothpick inserted comes out clean.
• Remove the cake from the oven. Allow it to fully cool, at least 4 hours.
• Once the cake has cooled, make the frosting. Add the butter to a mixing bowl. Use an electric mixer to beat until creamy, about 2 minutes.
• Then, add in the powdered sugar. Beat until combined.
• Add in the caramel sauce and flaky sea salt. Beat until combined.
• Finally, spread the frosting on top of the cooled cake. Slice and serve!

Pro Tips for the Best Banana Cake

Use Very Ripe Bananas

This cannot be overstated. Green or even yellow bananas will not give you enough natural sugar, moisture, or banana flavor. You want bananas that are mostly brown and covered in dark spots.

Those are the ones that look like they should be thrown out, and they are exactly the ones that make the best cake. If your bananas aren’t ripe enough, seal them in a paper bag for a day or two to speed up the process.

Don’t Skip the Browning Step

If time is tight, you can use plain melted butter instead. The cake will still be good. But browned butter is the detail that makes someone ask “what’s in this?” the first time they take a bite. It takes 6 minutes. Do it.

Don’t Overbake

Gluten free cakes can go from perfectly done to dry quickly. Start checking at the 33-minute mark. The toothpick should come out with maybe a moist crumb or two, not completely raw batter and not bone dry either. The cake will continue to firm up as it cools.

Cool Before Frosting

A minimum of 4 hours at room temperature, or you can bake the cake a day ahead and frost it the next day. The banana flavor also deepens overnight. That is another reason to make it in advance.

Use a 1:1 Gluten Free Flour Blend

Not all gluten free flours are equal. A 1:1 blend (like Bob’s Red Mill 1-to-1 or King Arthur Measure for Measure) is specifically formulated to replace all-purpose flour in baked goods. Using almond flour, coconut flour, or a single-grain GF flour will not work the same way and will affect the texture significantly.

Check Your Baking Soda

Old baking soda loses its leavening power. If yours has been open for more than 6 months, drop a pinch into a cup of hot water. If it doesn’t immediately bubble, buy a new box.

Variations and Substitutions

Not Gluten Free?

Simply swap the gluten free flour blend 1:1 for all-purpose flour. Same amount, same technique. The cake will have a slightly more classic crumb.

Dairy Free?

Use a plant-based butter (like Miyoko’s or Earth Balance) for both the cake and the frosting. Use any non-dairy milk in the cake. For the frosting, ensure the caramel sauce is also dairy free (many store-bought sauces contain cream).

Swap the Frosting

Classic cream cheese frosting also works beautifully here if you prefer the tanginess. A simple chocolate ganache poured over the top is another excellent option. Banana and chocolate are a natural pairing.

Add Mix-Ins

Fold ½ cup of mini chocolate chips, chopped walnuts, or pecans into the batter before baking. Both add texture and complement the banana and caramel flavors.

Make It a Layer Cake

Divide the batter between two 9-inch round cake pans, reduce the baking time to 25 to 30 minutes, and stack with frosting between the layers. You may want to make 1.5x the frosting recipe.

Make It Into Cupcakes

Fill standard cupcake liners ¾ full and bake at 350°F for 18 to 22 minutes. This recipe makes about 18 cupcakes.

Storage and Make-Ahead Tips

Method	How Long	Tips
Room temperature (unfrosted)	Up to 2 days	Cover tightly with plastic wrap or store in an airtight container.
Room temperature (frosted)	Up to 2 days	Cover loosely so you don’t disturb the frosting.
Refrigerator (frosted)	Up to 5 days	Bring to room temperature for 30 minutes before serving.
Freezer (unfrosted cake only)	Up to 3 months	Wrap individual slices in plastic wrap, then foil. Thaw overnight in fridge.

How This Recipe Compares to Popular Banana Cake Recipes

Here’s a quick breakdown of how this recipe stacks up:

Feature	This Recipe	Most Popular Recipes
Gluten-Free Option	Yes, built-in	Rarely (usually a footnote)
Butter Technique	Browned butter	Melted or creamed
Frosting Type	Salted caramel buttercream	Cream cheese frosting (almost always)
Sugar	Coconut sugar / brown sugar	White granulated sugar
Pan Size	9-inch square	9×13 sheet cake (most common)
Cinnamon	Yes	Sometimes
Dairy-Free Adaptable	Easy swap	Depends on recipe

The gap this recipe fills: a gluten free banana cake that doesn’t taste like a compromise, with a frosting that’s more interesting than the standard cream cheese version.

Frequently Asked Questions

You May Also Like

• Banana Upside Down Cake
• Carrot Cake Banana Bread
• Banana Bread Brookies
• Banana Upside Down Peanut Butter Bars
• Banana Blondies

If you make this Banana Cake recipe, I would really appreciate a review! You can find me on Instagram, Facebook, and Pinterest. Join my exclusive Facebook Group for a behind the scenes look. I would love for you to follow along! For more ideas, check out these Dessert Recipes.