Desserts
This banana cake recipe NZ Edmonds delivers the kind of moist, tender crumb Kiwi bakeries are famous for—with a signature twist of dark rum and toasted walnuts. 💛 The secret lies in ripe bananas folded into a rich, buttery batter, then baked until golden, creating a cake that stays soft for days without drying out. I developed this version after testing countless recipes, and it’s now my go-to for birthdays, picnics, or just because.
The beauty of this recipe is its simplicity—no fancy techniques, just a few 5 ingredients (plus pantry staples) that come together in under 30 minutes. Edmonds baking powder ensures a light rise, while a splash of dark rum adds depth and a hint of warmth that pairs perfectly with the nutty crunch of walnuts. The cake’s texture is foolproof: perfectly balanced between dense and airy, with a subtle caramel sweetness from the bananas.
What sets this apart is how it bakes—golden on top, moist inside, with a subtle vanilla aroma that fills your kitchen. The walnuts add texture and richness, while the rum infuses just enough to elevate it beyond basic banana cake. Serve it warm with a dusting of powdered sugar or a drizzle of honey for that classic Kiwi touch.
Best of all, this recipe scales easily—whether you're baking for a crowd or just treating yourself. The one-bowl method means minimal cleanup, and the cake keeps well for 3-4 days wrapped in foil. Ready to make a cake that tastes like nostalgia and comfort rolled into one?
Ingredients for banana cake recipe nz edmonds
Five core ingredients plus pantry staples—this Kiwi-style banana cake delivers legendary moistness with rum and walnut magic.
| Ingredient | Amount | Notes |
|---|---|---|
| Ripe Bananas 🍌 | 3 medium | Mashed until smooth |
| All-Purpose Flour 🌾 | 1 ½ cups | Spooned and leveled |
| Granulated Sugar 🍚 | 1 cup | White or brown |
| Edmonds Baking Powder 🍞 | 1 tbsp | For light texture |
| Ground Cinnamon 🌿 | 1 tsp | For warmth |
| Dark Rum 🍹 | ½ cup | For depth |
| Unsalted Butter 🧈 | ½ cup | Melted, full-fat |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Walnuts 🌰 | ½ cup | Toasted, chopped |
| Vanilla Extract 🌸 | 1 tsp | Pure vanilla |
| Salt 🧂 | ½ tsp | Fine sea salt |
The bananas are non-negotiable—ripe, with brown spots—they’re what gives this cake its signature caramel sweetness. Grab 3 medium bananas from the produce section, not the pre-sliced kind. For the rum, Captain Morgan or a local NZ brand like Black Tot work best—avoid flavored rums, they can overpower. Walnuts should be raw and fresh—toast them yourself (5 minutes in a dry pan) for maximum crunch. If you can’t find Edmonds baking powder, Royal or Rumford are solid substitutes, but measure carefully—too much makes the cake collapse.
No rum? A splash of orange juice or apple cider adds brightness, though it won’t have the same depth. Running low on walnuts? Pecans or almonds work in a pinch, but toast them first. The butter must be full-fat—none of that low-fat nonsense here. For the eggs, room temperature makes all the difference in a tender crumb. And if you’re in a hurry, pre-mashed bananas from a tube save time, though fresh mashed bananas always taste better. The cinnamon is optional but recommended—it’s what gives this cake its Kiwi bakery vibe.
This batter keeps for 24 hours in the fridge if you’re prepping ahead—just whisk everything together again before baking. The cake itself stays moist for 3-4 days wrapped tightly in foil, or freeze slices for up to 3 months. For serving, powdered sugar or honey are classic Kiwi touches, but a simple dusting of icing sugar works too. Leftovers? Reheat slices for 10 seconds in the microwave to restore moisture—trust me on this.
Why You'll Love This Recipe
- No Mash Needed: Honestly, I just smash those ripe bananas right in the bowl with a fork—no food processor, no fuss. The Edmonds baking powder does all the lifting, so the batter’s light and fluffy without overmixing.
- Spiced Perfection: That cinnamon? It’s the star here—warm, cozy, and just sweet enough to make you forget about store-bought cakes. The sugar caramelizes beautifully, giving it that classic NZ banana cake texture.
- Lunchbox Hero: Between us, this cake’s my go-to for school lunches or work snacks. Cut into squares, and it’s sturdy enough to handle a backpack—no soggy edges, just pure satisfaction.
- Pantry Staple Magic: I make a double batch because it’s cheap (ripe bananas are free if you’re not picky) and lasts forever. Wrap it in foil, and it’s still delicious days later—perfect for when I’m too tired to bake.
Step-by-step instructions for banana cake recipe NZ Edmonds
Transform simple ingredients into a perfectly moist rum-infused cake with this Kiwi-style method.
👨🍳 Step 1: Mash Bananas and Prepare Wet Ingredients
In a large mixing bowl, mash the 3 medium ripe bananas until completely smooth—no lumps should remain. This ensures even distribution throughout the batter and prevents dense pockets. Add the 0.5 cup melted unsalted butter (melted and cooled slightly) and 0.5 cup dark rum, stirring to combine. The rum adds depth and moisture that's characteristic of Kiwi baking.
In a separate small bowl, whisk together the 2 whole large eggs and 1 tsp vanilla extract until fully combined. Then add this mixture to the banana-butter-rum combination. The eggs provide structure while the vanilla enhances the warm spice notes we're building. Stir in the 0.5 tsp salt and 1 tsp ground cinnamon—these will create that signature cozy flavor profile.
👨🍳 Step 2: Combine Dry Ingredients and Create the Batter
In the same bowl with the wet ingredients, sift in the 1.5 cups all-purpose flour and 1 tbsp Edmonds baking powder. Use a wooden spoon or rubber spatula to gently fold these dry ingredients into the wet mixture until just combined—you should still see some flour streaks. Overmixing develops gluten, which can make the cake dense rather than tender.
Here's the thing—don't worry if the batter looks thin. The bananas and rum contribute significant moisture, and the baking powder will create lift. The final texture should be like thick pancake batter. Fold in the 0.5 cup toasted, chopped walnuts at the end—they add crunch and nutty contrast that balances the cake's softness.
🔥 Step 3: Prepare and Bake the Cake
Preheat your oven to 350°F and grease an 8-inch round cake pan or line it with parchment paper. Pour the batter into the prepared pan and smooth the top with a spatula. Tap the pan gently on the counter a few times to remove any air bubbles that might have formed during mixing.
Bake for 35-40 minutes, or until a toothpick inserted into the center comes out clean with just a few moist crumbs clinging to it. The cake should be golden on top but still slightly springy to the touch. Real talk: your oven might run hot, so start checking at the 30-minute mark. If the edges brown too quickly, tent loosely with aluminum foil to prevent over-browning while the center finishes cooking.
⏰ Step 4: Cool and Serve for Maximum Moisture
Remove the cake from the oven and let it cool in the pan for 10 minutes. Then transfer it to a wire rack to cool completely. This gradual cooling prevents the cake from developing a gummy texture at the center—a common mistake that ruins all the hard work we've done for that perfect moist crumb.
The cake will be moistest when served at room temperature, so if you're in a hurry, let it cool for at least 30 minutes before slicing. For extra indulgence, brush warm slices with a simple glaze made from powdered sugar and a splash of milk. The rum and walnut flavors really shine when the cake is fully cooled and the flavors have melded together.
Pro Tips For Making Banana Cake Recipe Nz Edmonds
- Mash Bananas Thoroughly: I learned this the hard way—lumpy banana purée makes for a dense, uneven cake. Use a fork first, then press through a sieve or fine mesh to remove skins and fibers. That extra effort guarantees a silky texture, not a chewy surprise in every bite.
- Preheat Oven to 180°C: Edmonds baking powder needs a consistent, steady heat to work properly. A cold oven means your cake will rise unevenly or sink in the middle. Let the oven preheat for 10-15 minutes—yes, even if you’re eager to bake.
- Sift the Flour: Skipping this step is tempting, but unsifted flour packs down and weighs your cake batter. Lighten it up by sifting the all-purpose flour with the baking powder and cinnamon together. The cake will be fluffier, not denser.
- Use a Cake Thermometer: Banana cakes can dry out if overbaked, but underbaked ones stay gummy. Insert a thermometer into the center—pull it out at 95°C. If you don’t have one, tap the top: it should spring back, not feel jiggly. Overbaking is the fastest way to ruin a moist cake.
Best sauces and condiments for banana cake recipe nz edmonds
Rum Caramel Glaze
This 3-ingredient glaze elevates your cake with a sticky, aromatic finish. Mix ½ cup powdered sugar with 1 tbsp dark rum> and 1 tsp lemon juice in a small bowl. Drizzle over cooled cake slices or the whole top for a glossy sheen. The rum intensifies the cake’s flavor while the acidity brightens the sweetness. 💛
Honey Buttercream
For a Kiwi classic, whip ½ cup softened butter with 1 cup icing sugar until smooth, then fold in 2 tbsp honey> and 1 tsp vanilla extract. Spread between cake layers or frost the top. The honey adds floral notes that complement the rum and walnuts beautifully. Store leftovers in an airtight container for up to 5 days.
Whipped Cream Topping
Lightly sweetened whipped cream is a must for serving. Whip 1 cup heavy cream> with 1 tbsp powdered sugar and ½ tsp vanilla> until soft peaks form. Fold in 2 tbsp chopped toasted walnuts> for texture. This topping balances the cake’s richness while adding a festive touch. Keep chilled until ready to serve.
Lemon Curd Drizzle
Store-bought or homemade lemon curd> adds a tangy contrast. Warm ¼ cup lemon curd> in a small saucepan, then drizzle over cake slices. The citrus cuts through the rum’s sweetness, creating a refreshing balance. For extra flair, garnish with a sprinkle of toasted coconut flakes>.
Chocolate Ganache
For chocolate lovers, melt ½ cup dark chocolate chips> with ¼ cup heavy cream> in a double boiler. Let cool slightly, then drizzle over cake slices. The ganache’s richness pairs perfectly with the cake’s nutty, rum-infused flavors. Store in an airtight container for up to 1 week.
Nutrition facts
Frequently asked questions
Can I make this banana cake without rum?
Replace the 0.5 cup dark rum with 0.5 cup apple cider or orange juice for a kid-friendly version. The moisture remains, though the depth of flavor will be slightly different. For a rum-free twist, add 1 tsp vanilla bean paste instead—it enhances the warm spice notes while keeping the cake's signature moistness.
Why does my banana cake turn out dry?
Overbaking is the #1 culprit—remove the cake when a toothpick comes out with moist crumbs, not completely clean. Another common mistake is using underripe bananas (they release less moisture) or overmixing the batter (which develops gluten). To fix it, brush slices with simple syrup (1 tbsp sugar + 2 tbsp water, heated until dissolved) before serving.
Can I substitute walnuts for another nut?
Yes! Swap walnuts for pecans (toast first for crunch) or almonds (chopped). For a non-nut option, try chopped dried apricots or toasted coconut flakes—both add texture. Just reduce the amount by 1-2 tablespoons if using smaller nuts to maintain balance. The key is contrast—something crunchy against the soft cake.
How do I store leftovers to keep them moist?
Wrap cooled cake tightly in plastic wrap or foil, then place in an airtight container. For longer storage (3-4 days), refrigerate—reheat slices in the microwave for 10 seconds to restore moisture. Freeze slices individually for up to 3 months (thaw overnight in the fridge). Pro tip: Spritz with water before rewrapping to maintain softness.
What’s the best way to test if bananas are ripe enough?
Look for brown speckles on the peel (not mold!) and gentle give when pressed. The riper the better—overripe bananas (black peel) work too but may make the cake slightly sweeter. For consistency, use bananas that are 75% ripe (peel has brown spots but isn’t fully black). If you’re unsure, mash one first—it should be smooth with no hard centers.