Golden Streusel Banana Cake

Indulgent Banana Crumb Cake: The Ultimate Recipe for Moist, Flavorful Goodness

A slice of banana crumb cake, a fork, and three banana slices on a white plate. A banana rests in the background.

Are you often left with a small mountain of overly ripe bananas staring back at you from your kitchen counter at the end of the week? It’s a common scenario for many home cooks and bakers alike. We buy them with the best intentions for healthy snacking, but sometimes life gets in the way, and those yellow beauties transform into speckled, soft, and sweet treasures just begging to be baked into something extraordinary. While my whole wheat banana bread is a fantastic, healthier option for using up those bananas, there are moments when only a truly indulgent treat will do. And that, my friends, is where this spectacular Banana Crumb Cake enters the scene.

This recipe isn’t just another banana cake; it’s a moist, tender, and intensely flavorful experience elevated by a generous, buttery crumb topping that adds the perfect textural contrast. It transforms humble overripe bananas into a coffee cake masterpiece that’s not only perfect for dessert but also makes a surprisingly acceptable (and utterly delicious) breakfast companion. Imagine starting your day with a slice of this warm, spiced cake, perhaps with a cup of coffee or tea – it’s pure bliss! This isn’t just baking; it’s smart baking, turning potential food waste into a delightful treat that everyone will adore.

Two slices of banana cake with buttermilk on white plates. Forks and banana slices are also on the plates.

Why This Banana Crumb Cake is a Must-Try

This isn’t your average banana cake. It’s a meticulously crafted recipe designed to deliver maximum flavor and an unbelievably moist texture, crowned with a irresistible crumb topping. Here’s why this Banana Crumb Cake will quickly become a staple in your recipe collection:

  • Unrivaled Moisture: Thanks to the combination of extra-ripe bananas and buttermilk, this cake boasts a deeply moist and tender crumb that practically melts in your mouth. No dry cake here!
  • Decadent Crumb Topping: The streusel topping is a game-changer. Made with flour, brown sugar, cinnamon, and cold butter, it bakes into a crisp, buttery layer that provides a delightful textural contrast to the soft cake below.
  • Bursting with Banana Flavor: Using truly ripe bananas (the spottier, the better!) ensures a profound, natural banana sweetness and aroma throughout the cake. This is amplified by a hint of warm cinnamon.
  • Simple to Make: Despite its impressive appearance and taste, this recipe is surprisingly straightforward. With clear steps for both the crumb topping and the cake batter, even novice bakers can achieve spectacular results.
  • Versatile Treat: Perfect for any occasion – from a casual family breakfast or brunch to an elegant dessert for guests. It’s robust enough to travel well for potlucks and picnics.
  • Clever Use of Overripe Bananas: It provides a delicious and rewarding solution for those bananas that are past their prime for eating raw but are at their peak for baking.

Essential Ingredients for Your Banana Crumb Cake

Crafting this delightful banana crumb cake involves two main components: the rich, moist cake base and the buttery, spiced crumb topping. Each ingredient plays a crucial role in achieving the perfect balance of flavor and texture. Let’s delve into what you’ll need and why each element is important:

For the Irresistible Crumb Topping:

  • All-purpose flour: Forms the structure of the crumbs. Proper measurement (spooned and leveled) is key to a light, crisp topping.
  • Brown Sugar: Adds a deep, caramel-like sweetness and helps create a wonderfully chewy texture in the crumb topping.
  • Ground Cinnamon: A warm, aromatic spice that pairs beautifully with banana and brown sugar, enhancing the overall cozy flavor.
  • Cold Unsalted Butter: Essential for a crumbly topping. Cold butter, cut into small pieces, creates pockets that melt slowly in the oven, yielding that signature streusel texture. Using unsalted butter allows you to control the total salt content.

For the Luxuriously Moist Banana Cake Base:

  • All-purpose flour: The foundation of the cake. Measuring correctly by spooning and leveling prevents a dense cake.
  • Baking Powder & Baking Soda: These leavening agents work in harmony to give the cake its beautiful rise and tender texture. Baking soda reacts with the acidic buttermilk and brown sugar.
  • Ground Cinnamon: Infuses the cake batter with warm spice, complementing the banana flavor without overpowering it.
  • Salt: A crucial flavor enhancer. It balances the sweetness of the sugars and bananas and brings out the depth of all the other ingredients.
  • Unsalted Butter (Softened): For the cake, softened butter creams beautifully with sugar, incorporating air for a light and fluffy batter. Unsalted butter again provides control over seasoning.
  • Brown Sugar & Granulated Sugar: A blend of both sugars offers complexity. Brown sugar contributes moisture and a molasses-like flavor, while granulated sugar ensures sweetness and helps achieve a tender crumb.
  • Large Eggs (Room Temperature): Eggs act as an emulsifier, binding ingredients together, and contributing to the cake’s structure and richness. Room temperature eggs combine more smoothly with the butter and sugar, creating a more uniform batter.
  • Pure Vanilla Extract: A staple in baking, vanilla deepens and rounds out the overall flavor profile, adding a touch of sophisticated sweetness.
  • Mashed Ripe Bananas: The star of the show! Use very ripe bananas (those with plenty of brown spots or even fully brown skins) for the sweetest, most intense banana flavor and maximum moisture. About 1 and 1/2 cups mashed is ideal, typically 3-4 medium or 3 large bananas.
  • Buttermilk: The secret to an incredibly moist and tender cake. Its acidity reacts with the baking soda, creating a light texture, while its unique flavor adds depth. If you don’t have buttermilk on hand, don’t worry – a simple homemade substitute works perfectly (more on this below!).

A slice of banana crumb cake, a fork, and three banana slices on a white plate. A banana rests in the background.

Step-by-Step Guide: How to Bake Your Perfect Banana Crumb Cake

Creating this banana crumb cake is a rewarding experience, and following these steps will ensure a delicious outcome. The process is broken down into making the crumb topping and then preparing the moist banana cake base.

First, the Crumb Topping:

Begin by whisking together the dry ingredients for the crumb topping: all-purpose flour, brown sugar, and ground cinnamon. This ensures even distribution of flavors. Next, introduce the cold, cubed unsalted butter. It’s crucial that the butter is cold to achieve that signature crumbly texture. Use a pastry blender, or even your fingertips, to cut the butter into the dry mixture. Work quickly to prevent the butter from getting too warm. Continue until the mixture resembles coarse crumbs with some larger pea-sized pieces. Once done, transfer this mixture to the refrigerator to keep it chilled while you prepare the cake batter. This step helps maintain the topping’s structure and prevents it from melting into the cake during baking.

Next, the Moist Banana Cake Batter:

Start by preheating your oven to 350°F (175°C) and preparing a 9-inch springform pan by greasing and flouring it, or lining with parchment paper. In a large bowl, combine all the dry ingredients for the cake: flour, baking powder, baking soda, cinnamon, and salt. Give them a good whisk to ensure they’re thoroughly mixed. In a separate, larger mixing bowl (preferably using a stand mixer with a paddle attachment or an electric hand mixer), cream together the softened unsalted butter with both brown and granulated sugars. Beat this mixture for 2-3 minutes until it becomes light, fluffy, and pale. This creaming process incorporates air, contributing to the cake’s texture.

Now, add the wet ingredients. Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Then, mix in the pure vanilla extract and the mashed ripe bananas. Mix well, but avoid overmixing at this stage. The goal is just to combine everything.

The key to a tender cake is to alternate adding the dry ingredients with the buttermilk. Add a third of the dry mixture to the wet ingredients, mix until just combined, then add half of the buttermilk, mix, another third of the dry, mix, the remaining buttermilk, mix, and finally the last third of the dry ingredients. Mixing in increments like this helps prevent over-developing the gluten in the flour, which can lead to a tough cake. Always mix until just combined; a few streaks of flour are acceptable.

Pour the velvety batter into your prepared 9-inch springform pan. Retrieve your chilled crumb topping from the refrigerator and generously sprinkle it evenly over the top of the batter. Place the pan in the preheated oven and bake for approximately 50-60 minutes. The cake is done when a toothpick inserted into the center comes out clean or with a few moist crumbs attached. If the topping starts to brown too quickly, you can loosely tent the cake with aluminum foil for the last 10-15 minutes of baking.

Once baked, remove the cake from the oven and allow it to cool in the pan on a wire rack for at least 30 minutes before releasing it from the springform pan. It’s important to let it cool completely before slicing and serving, as this allows the cake to set properly and intensify its flavors.

Buttermilk: The Secret to Supreme Moisture

Buttermilk is a star ingredient in many baking recipes, and for good reason, especially in this banana crumb cake. Its acidity works wonders with baking soda, creating a chemical reaction that helps the cake rise, resulting in an exceptionally tender and moist crumb. Beyond its leavening power, buttermilk also contributes a subtle tang that balances the sweetness of the bananas and sugars, adding a layer of complexity to the flavor.

What if you don’t have buttermilk on hand? Don’t let that stop you from making this incredible cake! It’s incredibly easy to make your own buttermilk substitute using ingredients you likely already have in your pantry. Simply combine regular milk (dairy or non-dairy) with an acid, such as lemon juice or white vinegar. For every cup of buttermilk required, pour 1 tablespoon of lemon juice or white vinegar into a liquid measuring cup, then fill the rest of the way to the 1-cup mark with milk. Stir it gently and let it sit for 5-10 minutes. The milk will curdle slightly, indicating it’s ready to use. This homemade substitute functions almost identically to commercial buttermilk in baking, ensuring your banana cake turns out perfectly moist and tender every single time.

Expert Baking Tips for Success

  • Use Extra Ripe Bananas: This cannot be stressed enough! The spottier and darker your bananas are, the sweeter and more flavorful your cake will be. As bananas ripen, their starches convert to sugars, yielding a natural sweetness and moistness that is crucial for this recipe. Don’t be shy if they’re almost black – those are truly perfect!
  • Proper Flour Measurement: Always spoon and level your flour. Scooping flour directly from the bag can compact it, leading to too much flour in your batter and a dense, dry cake. Spoon flour lightly into your measuring cup, then level off the top with a straight edge.
  • Room Temperature Ingredients: Ensure your eggs and softened butter are at room temperature. This allows them to emulsify better with the other ingredients, creating a smoother, more uniform batter and contributing to a finer crumb in the final cake.
  • Don’t Overmix the Batter: Once you start adding the dry ingredients, mix only until just combined. Overmixing develops the gluten in the flour, which can result in a tough, chewy cake rather than a tender one.
  • Choosing the Right Pan: A 9-inch springform pan is ideal for this cake, allowing for easy removal and presentation. If you don’t have one, do not use a standard 9-inch round cake pan as it will be far too small for the volume of batter and will likely overflow. A 9×5-inch loaf pan can be used as an alternative, but note that you may not need all of the crumb topping, and the baking time might vary. Adjust accordingly!
  • Cool Completely Before Slicing: Patience is key! While it’s tempting to dive into a warm cake, allowing the banana crumb cake to cool completely in the pan on a wire rack is essential. This allows the cake to finish setting and firm up, making it easier to slice neatly and preventing it from falling apart. The flavors also meld and intensify as it cools.
  • Prevent Over-Browning: If you notice the crumb topping browning too quickly during the last 10-15 minutes of baking, loosely tent the cake with aluminum foil. This protects the topping while allowing the cake to finish baking through.

Delightful Variations and Serving Suggestions

This Banana Crumb Cake is magnificent as is, but it also serves as a wonderful canvas for customization. Feel free to experiment with these ideas to make it uniquely yours:

  • Add-ins: Stir in 1/2 cup of chopped walnuts or pecans to the cake batter for a nutty crunch. Chocolate chip lovers can add 1/2 cup of mini chocolate chips for an extra touch of sweetness. A sprinkle of shredded coconut would also be a fantastic addition.
  • Glaze It Up: For an extra layer of sweetness and a beautiful finish, drizzle a simple vanilla glaze over the cooled cake. Whisk together 1 cup of powdered sugar with 2-3 tablespoons of milk (or buttermilk for extra tang) and 1/2 teaspoon of vanilla extract until smooth.
  • Spice It Up: Enhance the warm spices by adding a pinch of nutmeg or a tiny amount of ground cloves to the cake batter and/or crumb topping.
  • Cream Cheese Frosting: If you’re leaning more towards a dessert cake, a light layer of cream cheese frosting would transform this into an even more decadent treat.

How to Serve Your Banana Crumb Cake:

This versatile cake can be enjoyed in many ways:

  • Breakfast or Brunch: Serve warm or at room temperature with coffee or tea. It’s truly a breakfast champion.
  • Dessert: A slice makes a comforting dessert. Enhance it with a scoop of vanilla ice cream, a dollop of whipped cream, or a drizzle of caramel sauce.
  • Afternoon Snack: A perfect pick-me-up with a glass of milk or a simple hot beverage.

Storage & Freezing Instructions

Proper storage ensures your banana crumb cake stays fresh and delicious for as long as possible.

  • Countertop Storage: Store slices or the whole cake in an airtight container at room temperature for up to 2 days. The crumb topping will remain crispiest this way.
  • Refrigeration: If you prefer to extend its shelf life, you can refrigerate the cake in an airtight container for up to 4-5 days. Be aware that the crumb topping may soften slightly. Bring slices to room temperature before serving for the best texture.
  • Freezing: This banana crumb cake freezes beautifully! Wrap individual slices or the entire cooled cake tightly in plastic wrap, then an additional layer of aluminum foil. Freeze for up to 2-3 months. Thaw overnight in the refrigerator, then bring to room temperature or gently warm before serving.

Frequently Asked Questions (FAQs)

Here are some common questions about making and enjoying banana crumb cake:

  • Can I use frozen bananas? Yes, absolutely! Thaw them completely at room temperature, then drain off any excess liquid before mashing. Frozen bananas tend to be even sweeter and moister, perfect for baking.
  • My crumb topping isn’t crumbly enough, what happened? This usually happens if the butter was too warm when you cut it into the dry ingredients. Ensure your butter is very cold. If it gets too warm, pop the mixture back into the refrigerator for 10-15 minutes before continuing.
  • How do I know my bananas are ripe enough? Look for bananas with plenty of brown spots on their skin, or even entirely brown. They should be soft to the touch. Green or even fully yellow bananas are not ideal for this recipe as they lack the sweetness and moisture needed.
  • Can I make this cake in a different sized pan? While a 9-inch springform pan is recommended, you can bake this in a 9×13 inch rectangular pan for a thinner cake, reducing baking time significantly (check at 30-35 minutes). You could also use a Bundt pan, but it might require more cake release spray and careful removal. Note that a different pan size will change the baking time.
  • Can I make this recipe gluten-free? I haven’t tested this specific recipe with gluten-free flour, but generally, a 1:1 gluten-free baking flour blend (one that contains xanthan gum) could work. The texture might be slightly different.
  • Can I reduce the sugar? While possible, bananas are already sweet, and the crumb topping adds a significant amount. Reducing sugar too much might impact the cake’s moisture and tenderness. If you do, try reducing by no more than 1/4 cup total and expect a slightly different texture.

More Irresistible Banana Desserts to Try!

If you’ve fallen in love with baking with bananas, here are some other fantastic recipes to explore:

  • ClassicBanana Cake
  • Whole Wheat Banana Bread
  • Hummingbird Cake
  • Banana Cream Pie
  • Classic Banana Bread
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Banana Crumb Cake

4.79 from 14 ratings
Prep Time: 25 minutes
Cook Time: 1 hour
Total Time: 1 hour 25 minutes
A moist banana cake topped with an easy crumb topping. This Banana Crumb Cake is a perfect way to use those ripe bananas!
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Ingredients

Servings: 10 slices

For the crumb topping:

  • 3/4 cup (95 grams) all-purpose flour (spooned & leveled)
  • 1/2 cup (100 grams) brown sugar
  • 1 teaspoon ground cinnamon
  • 6 tablespoons (85 grams) cold unsalted butter

For the cake:

  • 2 cups (250 grams) all-purpose flour (spooned & leveled)
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon ground cinnamon
  • 1/2 teaspoon salt
  • 1/2 cup (115 grams) unsalted butter , softened
  • 1/2 cup (100 grams) brown sugar
  • 1/4 cup (50 grams) granulated sugar
  • 2 large eggs , room temperature
  • 1 teaspoon vanilla extract
  • 1 and 1/2 cups mashed banana (4 medium ripe bananas or 3 large ripe bananas)
  • 1/2 cup (120 ml) buttermilk
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Instructions

 

To make the crumb topping:

  • In a large mixing bowl, whisk together the flour, brown sugar, and cinnamon. Cube the cold butter into small pieces and add to the flour mixture. Using a pastry blender (or your hands) cut the butter into the mixture until it starts to clump together and is crumbly. Transfer to the refrigerator while you make the cake batter.

To make the cake:

  • Preheat oven to 350°F. Spray a 9-inch springform pan with non-stick cooking spray and set aside.
  • In a large mixing bowl, whisk together the flour, baking powder, baking soda, cinnamon, and salt. Set aside.
  • In the bowl of a stand mixer fitted with the paddle attachment, or in a large mixing bowl using an electric mixer, cream together the butter, brown sugar, and granulated sugar for 2-3 minutes until well combined. Mix in the eggs, vanilla extract, and mashed banana, making sure to mix well after adding each ingredient.
  • Slowly add the dry ingredients in three additions, alternating with the buttermilk, and mixing each addition just until combined.
  • Scoop the batter into the prepared springform pan. Remove the crumb topping from the refrigerator and sprinkle on top of the batter.
  • Bake at 350°F for 50-60 minutes or until a toothpick inserted into the center of the cake comes out clean. Cover loosely with foil for the last 10-15 minutes of baking if needed to prevent excess browning.
  • Remove from the oven and transfer to a wire rack to cool for at least 30 minutes before removing from the springform pan. Allow to cool completely before serving.
  • Notes

    Storage instructions: Store banana cake on the counter in an airtight container for up to 2 days.
    Cuisine: American
    Course: Breakfast
    Author: Danielle Rye
    Did you make this recipe?Mention @livewellbakeoften on Instagram or tag #livewellbakeoften.