Desserts
This banana and peanut butter cake recipe UK delivers the perfect balance of moist, spiced layers and a rich, nutty frosting that’s impossible to resist. 💛 The secret lies in ripe bananas that keep the crumb tender, while peanut butter adds depth without overpowering the vanilla notes. I’ve tested this recipe countless times, and it never fails to impress—whether for a family gathering or a solo treat. What makes this recipe stand out is the foolproof technique for achieving that signature moist texture without drying out. The frosting, made with creamy peanut butter and a touch of cinnamon, ties everything together with its velvety smoothness. It’s the kind of cake that tastes even better the next day, as flavors meld and the moisture intensifies. By the time you pull it from the oven, you’ll have a cake with golden layers and a frosting so rich it feels like a hug in every bite. The aroma alone—warm spices, ripe bananas, and toasted peanut—will have everyone asking for seconds. This is comfort food at its finest, with a British twist that’s both nostalgic and modern. The best part? It’s easy to adapt—swap in vegan butter or dairy-free milk for a plant-based version, or add chocolate chips for extra indulgence. Let’s get baking!
Ingredients for banana and peanut butter cake recipe uk
Ripe bananas and creamy peanut butter create the perfect moist, spiced cake layers.
| Ingredient | Amount | Notes |
|---|---|---|
| Ripe Bananas 🍌 | 3 medium | Mashed, about 1.5 cups total |
| All-Purpose Flour 🌾 | 2 cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Peanut Butter 🥜 | 1 cup | Creamy, natural style |
| Unsalted Butter 🧈 | ¾ cup | Softened, not melted |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Baking Powder 🍃 | 2 tsp | Diamond Crystal preferred |
| Ground Cinnamon 🌿 | 1 tsp | Toasted for warmth |
| Vanilla Extract 🍯 | 1 tsp | Pure alcohol-free preferred |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Milk 🥛 | ½ cup | Whole for richness |
| Powdered Sugar 🍚 | 2 cups | For frosting |
| Cream Cheese 🧀 | 8 oz | Room temperature |
| Ground Cinnamon 🌿 | ¼ tsp | For frosting |
Ripe bananas are non-negotiable here—they're the secret to that signature moist crumb. Look for bananas with brown speckles when buying, or let them sit on your counter for a day or two. The peanut butter should be natural, creamy style—none of that crunchy stuff. Smucker's or Skippy are reliable, but any brand works as long as it's unsweetened. For the butter, I always use unsalted since we're controlling the salt ourselves. If you're in the UK, grab Cravendale or Bramley apples for a local twist, though they won't replace the bananas. The flour? Sift it—this makes all the difference for a light texture. I keep mine in the freezer to prevent rancidity, but it's fine at room temperature if you use it within a month.
No ripe bananas? Use 1 cup mashed frozen bananas—they're just as sweet and work perfectly. Running low on powdered sugar? Blend granulated sugar in a food processor for a quick substitute. The frosting calls for cream cheese, but vegan cream cheese works too if you're making this plant-based. No vanilla extract? Vanilla sugar at half the amount gives a similar depth. The cinnamon in the frosting is key—it ties the peanut flavor together beautifully. If you're feeling adventurous, add a pinch of espresso powder to the batter for a sophisticated twist. And trust me, the room temperature ingredients mix together so much better—no one likes lumpy frosting!
This cake keeps beautifully—3 days at room temperature covered, or 1 week refrigerated. The frosting? 3 days max in the fridge, but it's worth making fresh. I always bake mine the day before—flavors meld overnight, and it's one less thing to stress about on serving day. For storage, wrap tightly in parchment paper then foil to keep it fresh. Freezing? The unfrosted cake freezes well for 3 months, but add the frosting fresh after thawing. The bananas in the batter will make it extra moist after freezing, so it's perfect for making ahead.
Why You'll Love This Recipe
- No-Fuss Mixing: I swear by this recipe because it’s literally just creaming butter, stirring in sugar, folding in flour, and—here’s the magic—mashed bananas and peanut butter. No eggs, no fuss, no waiting for the oven to preheat forever. The batter’s thick but never dry, and the texture? Like a hug from your favourite cake.
- Peanut Butter Kiss: That rich, nutty peanut butter swirl cuts through the sweetness just right, while the bananas keep it moist without tasting like dessert. Honestly, the first bite makes me think of childhood—warm, gooey, and ridiculously satisfying. (Yes, even on a Tuesday night.)
- Leftovers That Work: This cake stays moist for days, so I bake a whole one and portion it out. Slice it for breakfast with a drizzle of honey, pack it in lunchboxes, or serve it at a picnic—it’s always a hit. My kids argue over the last piece, and I don’t even feel guilty about it.
- Budget Bakery Win: Flour, sugar, bananas, and peanut butter? That’s it. No pricey ingredients, no wasted leftovers (unless you count the last slice disappearing too fast). I’ll be real: this is my go-to when I’m broke but still want something that tastes like a treat. Plus, the ripe bananas? Free money if you’re already buying them.
Step-by-step instructions for banana and peanut butter cake
Here's the method for a perfectly moist cake with nutty flavor in every bite.
👨🍳 Step 1: Prepare the Banana-Peanut Butter Batter
Preheat your oven to 350°F and grease two 8-inch round cake pans, lining the bottoms with parchment paper. In a large mixing bowl, mash the 3 medium ripe bananas until smooth—you should have about 1.5 cups of mashed banana. This is your moisture base, so don't skip this step.
In a separate bowl, whisk together the 2 cups all-purpose flour, 2 tsp baking powder, 1 tsp ground cinnamon, and 0.5 tsp salt. Sift the mixture directly into the mashed bananas to avoid lumps. Add the 1.5 cups granulated sugar, 1 cup peanut butter, 0.75 cup softened unsalted butter, 2 whole large eggs, 1 tsp vanilla extract, and 0.5 cup milk.
🍳 Step 2: Mix Until Just Combined
Using an electric mixer on medium speed, beat the batter for 2-3 minutes until fully combined and smooth. The peanut butter will thicken the batter slightly, but don't overmix—stop as soon as the ingredients are evenly distributed. Overmixing develops gluten, which can make the cake dense instead of moist.
Divide the batter evenly between the prepared cake pans. Tap each pan gently on the counter to release any air bubbles. This ensures even baking and prevents a dense texture. Bake for 25-30 minutes or until a toothpick inserted into the center comes out clean. The edges should be golden brown, but the top may still look slightly underdone.
🥘 Step 3: Prepare the Cream Cheese Frosting
While the cakes cool, prepare the frosting by beating the 8 oz room-temperature cream cheese and 0.75 cup softened unsalted butter together until smooth and creamy. This should take about 2-3 minutes on medium speed. Scrape down the sides of the bowl as needed to ensure even mixing.
Gradually add the 2 cups powdered sugar, mixing on low speed until combined. Add the 1 tsp vanilla extract and 0.25 tsp ground cinnamon, then beat for another 1-2 minutes until light and fluffy. The frosting should be thick but spreadable—if it's too stiff, add 1-2 teaspoons milk to loosen it.
🍽️ Step 4: Assemble and Chill the Cake
Once the cakes have cooled completely, place one layer on a serving plate. Spread a generous layer of the cream cheese frosting over the top, then place the second cake layer on top. Frost the entire cake, spreading the remaining frosting evenly over the top and sides. For extra flair, pipe additional frosting around the edges or create a simple rosette in the center.
Chill the cake in the refrigerator for at least 1 hour before serving. This allows the frosting to set and the flavors to meld together. The cake will be moist and tender, with a rich peanut butter flavor that pairs perfectly with the creamy frosting. Slice and serve with a dollop of whipped cream or a sprinkle of crushed peanuts for added texture.
Pro Tips For Making Banana And Peanut Butter Cake Recipe Uk
- Mash Bananas Properly: Use a fork first, then push through a sieve—this removes stubborn banana bits that turn your cake into a chewy mess. I learned this the hard way when my first attempt had texture like banana-flavored rubber.
- Cream Butter and Sugar Slowly: Start with room-temperature butter and let the mixer do the work—beat for 2-3 minutes until properly fluffy. Rushing this step means your peanut butter won’t blend smoothly, and the cake will taste flat.
- Don’t Overmix the Batter: Mix just until the flour disappears—overworking it makes the cake dense. I used to go until it looked "done," but now I stop when the batter’s just combined. Trust the recipe’s flour amount.
- Add Peanut Butter Last: Fold it in at the very end with a spatula to keep those rich peanut oils distributed evenly. Dumping it in early makes the batter too thick, and the peanut flavor gets lost in the mix.
Flavor customization for this recipe
Spice Level Boost
For a warm, aromatic twist, add ½ tsp ground cardamom or ¼ tsp freshly grated nutmeg to the batter. These spices complement the peanut butter beautifully while adding depth. I like to toast the cinnamon in a dry pan for 30 seconds before adding it—this intensifies its flavor and gives the cake a subtle smoky note. 🌿
Chocolate Infusion
Swap ½ cup of the peanut butter for chocolate hazelnut spread like Nutella, or fold in ½ cup mini chocolate chips into the batter. For a richer frosting, mix 2 tbsp cocoa powder into the cream cheese base. This creates a decadent twist that’s perfect for chocolate lovers.
Citrus Zest Brightness
Add 1 tbsp lemon or orange zest to the batter for a refreshing citrus kick. The acidity balances the sweetness and peanut richness. I also like to add 1 tsp lemon juice to the frosting for a tangy contrast. Freshly grated zest works best—avoid pre-packaged versions, which can be bitter.
Nutty Variations
Replace the peanut butter with almond butter or cashew butter for a different nutty profile. Almond butter adds a slightly sweeter, more delicate flavor, while cashew butter brings a creamier texture. For extra crunch, sprinkle toasted chopped nuts (peanuts, almonds, or walnuts) on top before baking.
Coffee or Espresso Twist
Add 1 tsp instant espresso powder or 1 tbsp strong brewed coffee** to the batter for a sophisticated depth. This works especially well if you’re using dark chocolate chips or cocoa in the frosting. The coffee enhances the peanut flavor without overpowering it—trust me, it’s a game-changer for a more adult dessert. ☕
Nutrition facts
Frequently asked questions
Can I use frozen bananas instead of fresh?
Thaw and mash 4-5 frozen bananas to get the same 1.5 cups needed. Frozen bananas work perfectly—they're often sweeter and add extra moisture. Just avoid using partially frozen bananas, as they won't mash smoothly.
What if I don't have cream cheese for the frosting?
No problem! Swap it for ½ cup softened butter mixed with 2 cups powdered sugar and 1 tsp vanilla. For extra richness, add ½ cup peanut butter to the frosting. The texture will be slightly softer but still delicious.
How do I make this cake vegan?
Replace the 2 eggs with 2 tbsp flaxseed meal + 6 tbsp water (let sit 5 minutes to thicken). Use vegan butter and plant-based milk, and swap cream cheese for vegan cream cheese or tofu-based frosting. The texture stays moist with these adjustments!
Why did my cake turn out dense?
Overmixing the batter or underbaking are the most common culprits. Mix only until combined (2-3 minutes max) and bake until a toothpick comes out clean. Also, ensure your leavening agents (baking powder) are fresh—old baking powder loses potency.
Can I bake this in a single layer instead of two?
Yes! Use a 9-inch round pan and reduce baking time to 20-25 minutes. The frosting quantity stays the same, but you'll need to spread it thicker. For a taller cake, try a 6-inch pan with 35-40 minutes baking time. Adjust based on your oven's hot spots!