Desserts
Mary Berry’s banana and walnut cake delivers the perfect balance of moist, spiced banana layers and crunchy walnut depth—a classic dessert with a modern twist. The secret lies in folding chopped walnuts into the batter just before baking, ensuring they stay crispy while the cake remains tender. This recipe captures her signature elegance with a golden crust that cracks beautifully, revealing layers of warm spice and caramelized banana.
What sets this cake apart is the two-stage baking process: a short initial bake to set the edges, followed by a longer finish to develop depth of flavor. The result is a cake with a perfectly domed top, where the walnuts peek through the golden crust like little surprises. No special equipment is needed—just a standard cake pan and a few simple techniques to guarantee success.
The aroma of cinnamon and vanilla fills the kitchen as it bakes, promising a dessert that’s rich yet not overly sweet, with just the right amount of moisture from ripe bananas. Each slice reveals a tender crumb studded with walnuts, their nuttiness complementing the cake’s natural sweetness. This is the kind of dessert that feels both comforting and impressive—ideal for gatherings or a special treat.
For an extra touch, brush the warm cake with a simple vanilla glaze or dust with powdered sugar. The walnuts can be toasted before folding for an intensified flavor, and a sprinkle of flaky sea salt on top enhances the contrast. Whether served with tea or on its own, this cake is a foolproof way to bring Mary Berry’s baking magic to your kitchen.
Ingredients for banana and walnut cake recipe mary berry
Twelve simple ingredients create Mary Berry's signature golden crust and nutty depth.
| Ingredient | Amount | Notes |
|---|---|---|
| Ripe Bananas 🍌 | 2 cups | Mashed, about 3 medium bananas |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | Light brown sugar preferred |
| Walnuts 🥜 | 1 ½ cups | Chopped, toasted for intensity |
| Unsalted Butter 🧈 | 1 cup | Softened at room temperature |
| Large Eggs 🥚 | 2 whole | Room temperature for blending |
| Vanilla Extract 🍯 | 2 tsp | Pure vanilla extract preferred |
| Ground Cinnamon 🌿 | 2 tsp | Freshly ground for warmth |
| Baking Powder 🧂 | 1 tsp | Aluminum-free preferred |
| Salt 🧂 | ½ tsp | Fine sea salt preferred |
| Powdered Sugar 🍚 | ¼ cup | For vanilla glaze |
| Heavy Cream 🥛 | ¼ cup | For glaze consistency |
| Flaky Sea Salt 🧂 | 1 tsp | For final garnish |
The walnuts are non-negotiable here—buy them pre-chopped from Costco or Trader Joe's for consistency, or toast and chop your own. English walnuts work best, but any variety will do. Toast them in a dry pan until fragrant (about 5 minutes), then chop them yourself—the difference in flavor is noticeable. The bananas should be ripe but not mushy, with just a few brown spots. Sainsbury's or Waitrose often have perfect ones, but check your local store's produce section first. For the butter, Plugrá or President brands are reliable for that perfect softness without melting.
No vanilla extract? Vanilla bean paste works too, though it's pricier. Short on walnuts? Pecans or hazelnuts are good swaps, but toast them first. The baking powder is crucial—double-check the expiration date since old powder loses its lift. For the glaze, powdered sugar and heavy cream give that classic finish, but condensed milk works in a pinch. If you're gluten-sensitive, substitute gluten-free flour blend at a 1:1 ratio, though texture may differ slightly. The cinnamon should be freshly ground—pre-ground loses potency fast.
Store the cake in an airtight container at room temperature for up to 3 days, or refrigerate for 5 days. The walnuts stay crispy for 2 days if kept sealed. For extra freshness, wrap individual slices in parchment paper—perfect for gifting. The glaze sets quickly, so assemble it last. If making ahead, bake the cake, cool completely, then wrap tightly. Freeze for up to 3 months—thaw at room temperature before serving. The aroma alone will draw everyone to the kitchen.
Why You'll Love This Recipe
- No Fuss Mix-In: That mashed banana step? Just smash them with a fork—no food processor, no stress. The walnuts add texture without extra effort, and the buttercream glaze (if you add it) comes together in two minutes while the cake cools.
- Mary Berry’s Secret: Honestly, the sugar and butter combo here is chef’s kiss—rich but not heavy, thanks to the bananas keeping it moist. The walnuts give it that nutty crunch that makes every bite feel special, like a little treat you didn’t have to work for.
- Weeknight Workhorse: Slice it for breakfast, pack it in lunchboxes, or serve it at a tea party—this cake does it all. (Yes, even on a Tuesday night.) The flour and sugar base means it’s sturdy enough to travel but still feels indulgent.
- Budget-Friendly Luxury: Ripe bananas and walnuts stretch your dollar further than you’d think. One batch feeds six, and leftovers? They last days in the fridge, saving you from last-minute grocery runs. Plus, the butter makes it taste like you spent hours baking.
Step-by-step instructions for Mary Berry's banana and walnut cake
Here's how to create a moist banana cake with a golden crust and nutty depth—Mary Berry's signature touch.
Prepare the Walnuts and Preheat the Oven
Toast the 1.5 cups chopped walnuts in a dry skillet over medium heat for 5-6 minutes, stirring frequently, until they release their aroma and turn a rich golden color. This step intensifies their flavor—don't skip it. Let them cool completely before using.
While the walnuts toast, preheat your oven to 350°F. Grease an 8-inch round cake pan or line it with parchment paper for easy removal. I always use a light coating of unsalted butter and a dusting of all-purpose flour to prevent sticking. Tap the pan gently on the counter to remove any air bubbles from the parchment.
Mix Wet Ingredients for a Light Batter
In a large mixing bowl, combine the 2 cups mashed ripe bananas, 1.5 cups granulated sugar, 1 cup softened unsalted butter, and 2 whole large eggs at room temperature. Use a hand mixer or stand mixer to beat on medium speed for 3-4 minutes until the mixture is smooth and slightly thickened. This ensures the cake will be tender rather than dense.
Add the 2 teaspoons vanilla extract and 2 teaspoons ground cinnamon, mixing on low speed for 30 seconds until fully incorporated. The batter should be fragrant with warm vanilla and spiced notes—this is where the true character of the cake begins to develop.
Combine Dry Ingredients for a Fluffy Texture
In a separate bowl, sift together the 2.5 cups all-purpose flour, 1 teaspoon baking powder, and 0.5 teaspoon salt. Whisk gently to aerate the flour—this prevents a heavy texture. Gradually add the dry mixture to the wet ingredients, mixing on low speed just until combined. Avoid overmixing; you should still see small streaks of flour in the batter.
Fold in the toasted walnuts by hand using a silicone spatula, ensuring they're evenly distributed throughout the batter. The walnuts add a delightful crunch and earthy flavor that pairs beautifully with the sweetness of the bananas. Pour the batter into the prepared cake pan and smooth the top with a spatula.
Bake Until Golden and Springy
Place the cake pan in the preheated oven and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean and the top is golden brown. I like to check the cake at the 35-minute mark—your oven might run hot, so start testing early. The cake should pull away slightly from the edges of the pan and spring back when pressed gently in the center.
If the top browns too quickly, tent the cake with aluminum foil to prevent over-browning while it continues to cook through. Once the cake is done, remove it from the oven and let it cool in the pan for 10 minutes. This resting period helps the cake set before transferring it to a wire rack to cool completely.
Prepare the Vanilla Glaze and Garnish
While the cake cools, prepare the vanilla glaze by whisking together the 0.25 cup powdered sugar, 0.25 cup heavy cream, and 1 teaspoon flaky sea salt in a small bowl. The salt enhances the sweetness of the glaze, adding a sophisticated touch. Adjust the consistency with a splash of heavy cream if needed—it should be thick enough to drizzle but still pourable.
Once the cake is completely cool, carefully invert it onto a serving plate if needed. Drizzle the vanilla glaze evenly over the top, letting it cascade down the sides for a beautiful finish. Sprinkle the remaining 1 teaspoon flaky sea salt over the glaze for a perfect balance of sweet and salty. Serve slices warm or at room temperature for the best experience.
Pro Tips For Making Banana And Walnut Cake Recipe Mary Berry
- Mash Bananas Properly: I learned this the hard way—smooth is better than lumpy. Use a fork to break up the flesh first, then press through a sieve or fine-mesh strainer to remove skins and seeds. This keeps the batter light and prevents a dense, gummy texture later.
- Toast Walnuts First: Skip the raw walnuts—Mary Berry’s version relies on their nutty depth. Toast them in a dry pan over medium heat for 5–7 minutes until golden and fragrant. Let them cool completely before chopping, or they’ll release oil and make the batter greasy.
- Check Doneness with a Slight Wobble: The cake’s done when the edges pull away from the pan but the center still has a gentle bounce. Overbaking turns it dry; underbaking leaves it gummy. If unsure, insert a skewer—it should come out with a few moist crumbs, not wet batter.
- Use Room-Temp Butter: Cold butter creates pockets of air in the batter, leading to uneven baking. Let it sit out for 30–45 minutes until soft but not melted. This ensures a tender crumb and even rise—no one wants a cake with dense spots from lazy butter.
Wine and beer pairings for this recipe
Sweet White Wine
Mary Berry’s banana and walnut cake pairs beautifully with a crisp, dry white wine that complements the cake’s nutty depth and caramelized banana flavors. I recommend a Sauvignon Blanc from New Zealand or Loire Valley—its bright acidity and citrus notes cut through the richness while enhancing the walnut’s earthiness. Look for a bottle with 12-13% alcohol and hints of gooseberry and lime to balance the cake’s sweetness. 🍷
Rich Red Wine
For those who prefer red, a Pinot Noir from Oregon or Burgundy is ideal. Its light tannins and red fruit notes (cherry, raspberry) harmonize with the cake’s cinnamon and vanilla without overpowering it. Choose a cool-climate Pinot Noir with 12.5-13.5% alcohol—avoid bold Cabernets that could clash with the delicate glaze. The wine’s subtle earthiness mirrors the walnuts beautifully.
Creamy Dessert Wine
If you’re serving this cake as a dessert course, a Moscato d’Asti or Lambrusco adds a festive touch. The slight fizz and floral sweetness of Moscato (around 5-6% alcohol) contrasts the cake’s density, while dry Lambrusco (sparkling red) brings a playful acidity. Serve chilled and pour small portions—these wines are meant to be savored alongside, not drowned out by the cake.
Beer Pairings
A Belgian Witbier like Hoegaarden or St. Bernardus Wit is a surprising but brilliant match. The corianander and orange peel notes in the beer echo the cake’s cinnamon, while its light effervescence cleanses the palate between bites. For a darker option, try a honey-brown ale (like Samuel Smith’s Nut Brown Ale)—its caramel and toasted malt mirror the cake’s walnut and banana flavors. 🍺
Non-Alcoholic Options
For a refreshing non-alcoholic pairing, serve the cake with sparkling apple cider (like Martinelli’s) or hibiscus iced tea. The tartness of the cider brightens the cake’s sweetness, while the tea’s floral notes complement the vanilla glaze. For a creamy option, a vanilla chai latte (with oat milk) enhances the spiced banana flavors without overpowering the walnuts.
Nutrition facts
Frequently asked questions
Can I substitute walnuts with another nut?
Pecans or hazelnuts work beautifully—they add a slightly different texture and flavor profile. Toast them first (like the walnuts) to intensify their aroma. If you prefer a crunchier texture, try toasted almonds instead. Just remember, the nuttiness is key to balancing the sweetness of the bananas.
Why does the cake need to cool in the pan for 10 minutes?
This short resting period prevents the cake from cracking when you transfer it to a wire rack. The heat continues to set the structure for those 10 minutes, ensuring a smooth top and even texture. Skipping this step can lead to a domed or uneven cake as it cools further.
How do I know when the cake is fully baked?
Insert a toothpick into the center—it should come out clean with just a few moist crumbs. The edges should pull away slightly from the pan, and the top should be golden brown. If the top browns too quickly, tent with foil to prevent over-browning while the center finishes baking.
Can I make this cake gluten-free?
Yes, but expect a slightly denser texture. Use a 1:1 gluten-free flour blend (like Bob’s Red Mill) and add 1 extra teaspoon of baking powder to help with lift. You may also need to reduce the oven temperature by 25°F to prevent over-browning. Test with a small batch first!
What’s the best way to store leftovers?
Keep the cake in an airtight container at room temperature for up to 3 days, or refrigerate for 5 days. For longer storage, freeze individual slices wrapped in parchment—thaw at room temperature before serving. The walnuts stay crispy for 2 days if stored properly.