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Moist Banana Traybake Cake with Coconut: Easy, Soft and Never Dry
🛒 Ingredients
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250 g plain flour
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1 sachet baking powder
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zest of 1 unwaxed lemon
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300 ml buttermilk
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100 g butter, softened
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100 g caster sugar
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3 very ripe bananas
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50 g desiccated coconut
This recipe is also available in German.
📌 Overview
Moist banana traybake cake depends on the right balance of ingredients, mixing technique and baking time. This recipe shows you exactly how to keep the cake soft and tender—without turning dry or dense—while achieving an even bake across the tray.
The key is using very ripe bananas, a well-emulsified batter and baking just until done. Combined with buttermilk and coconut, this creates a soft banana traybake with a light crumb and a gently golden top, perfect for everyday baking and easy slicing.
For more traybake ideas, try the Juicy Plum Traybake Recipe or the Old-Fashioned Plum Cake with Quark Crumble. For a richer dessert, the Apricot Tart with Creamy Rice Pudding Filling offers a creamy alternative.
👨🍳 How to make Moist Banana Traybake Cake with Coconut
- 1
Preheat the oven to 175°C and line a deep baking tray with baking parchment.
- 2
Beat the butter and sugar for 3–4 minutes until pale and fluffy to incorporate air.
- 3
Gradually add the buttermilk, mixing until smooth and evenly combined.
- 4
Mix flour, baking powder and lemon zest, then fold into the batter gently. Do not overmix.
- 5
Spread the batter evenly across the tray and level the surface.
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Slice bananas lengthways into thin strips and press lightly into the batter.
- 7
Sprinkle the coconut evenly over the top.
- 8
Bake for 25–30 minutes. A skewer should come out with a few moist crumbs, not completely dry.
- 9
Cool completely in the tray before cutting to allow the structure to set and retain moisture.
🧠 Why It Works
This moist banana traybake cake works because moisture and structure are balanced. Ripe bananas add natural sugars and water content, while buttermilk tenderises the crumb. Proper creaming of butter and sugar introduces air for a lighter texture. Minimal mixing after adding flour prevents gluten development, keeping the cake soft rather than dense. Controlled baking ensures the cake sets without drying out.
🛠️ Troubleshooting
Why is my banana traybake dry?
It was overbaked or overmixed. Bake only until a few moist crumbs remain and mix the batter gently after adding flour.
Why is the cake dense instead of soft?
The butter and sugar were not creamed enough or the batter was overworked. Proper aeration is essential.
Why are the bananas sinking into the cake?
The slices may be too thick or the batter too loose. Use thin slices and press them lightly into the surface.
Why is the cake unevenly baked?
The batter may not have been spread evenly or the oven temperature was inconsistent. Always level the batter and use the middle shelf.
💡 Tips and Variations
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Use very ripe bananas with brown spots for maximum moisture and sweetness.
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Lightly toast the coconut before baking for deeper flavour.
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Add 1 tsp vanilla extract to enhance overall aroma.
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Fold in 50 g chopped nuts for added texture.
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For a vegan version, use plant-based butter and replace buttermilk with plant yoghurt.
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Do not overfill the tray—an even layer ensures consistent baking.
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Use part brown sugar for a richer, caramel-like flavour.
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The most important rule: stop mixing as soon as flour is incorporated.
📦 Storage
Store in an airtight container at room temperature for up to 2 days. Refrigerate for up to 5 days. Bring to room temperature before serving to restore softness.
🍷 Pairing
Pairs well with coffee or tea. A light white wine such as Riesling or a fresh Pinot Grigio complements the banana sweetness and coconut notes.
❓ F.A.Q.
How do you keep banana traybake cake moist?
Use ripe bananas, avoid overbaking and mix the batter gently to preserve moisture.
Can I make this traybake in advance?
Yes, it keeps well and often becomes more moist the next day.
Can I freeze banana traybake cake?
Yes, slice and freeze in airtight packaging for up to 2 months.
Why is my banana cake not soft?
It may have been overmixed or not properly aerated during creaming.
Can I replace buttermilk?
Yes, use yoghurt or milk with a little lemon juice to replicate acidity.
🏛️ History and Tradition
Banana traybake cake is a European adaptation of banana bread, combining the practicality of traybake cakes with fruit-based baking traditions. It reflects everyday baking culture, where simple ingredients and efficiency are prioritised while maintaining soft texture and balanced flavour.
A moist banana traybake cake is all about technique: proper mixing, controlled baking and ripe fruit. Follow these steps for a soft, evenly baked cake every time.
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