Chocolate Banana Swiss Roll Cake – A Soft, Creamy, Dreamy Dessert

 

Some desserts have a way of stealing your heart at first glance—and this Chocolate Banana Swiss Roll is one of them. A light cocoa sponge rolled with creamy filling and whole bananas inside, then finished with a glossy chocolate ganache… every slice is a masterpiece. The combination of soft cake, smooth cream, and fresh bananas creates the perfect harmony of textures and flavors. Whether you're preparing it for guests, a family celebration, or simply to satisfy your sweet cravings, this dessert will leave everyone speechless.

Let’s dive into the full recipe!

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⭐ Ingredients

For the Chocolate Sponge Cake

• 4 large eggs

• ¾ cup granulated sugar

• ½ cup all-purpose flour

• ¼ cup cocoa powder

• 1 tsp baking powder

• 1 tbsp vegetable oil

• 1 tsp vanilla extract

• A pinch of salt

For the Cream Filling

• 1 ½ cups heavy whipping cream (cold)

• 3 tbsp powdered sugar

• 1 tsp vanilla extract

• 1–2 bananas (whole, ripe but firm)

For the Chocolate Ganache

• 200 g dark chocolate (chopped)

• 1 cup heavy cream

• 1 tbsp butter (optional, for shine)

For Decoration

• Banana slices

• Chocolate chips

• Drizzle of leftover ganache

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👩‍🍳 Step-by-Step Instructions

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1. Prepare the Sponge Cake

Preheat your oven to 180°C (350°F). Line a large rectangular baking tray with parchment paper. This is important because it helps the cake roll smoothly without sticking.

Separate the eggs. In a mixing bowl, beat the egg whites with a pinch of salt until foamy. Slowly add half of the sugar and continue beating until stiff peaks form.

In another bowl, beat the egg yolks with the remaining sugar until pale and creamy. Add vanilla and a tablespoon of vegetable oil to keep the cake soft.

Sift flour, cocoa powder, and baking powder. Add dry ingredients to the yolk mixture gently. Once combined, fold in the whipped egg whites slowly using a spatula. The air inside the whites is what keeps the cake light and flexible—don’t rush this step.

Pour the batter into the prepared tray, spreading evenly. Bake for 10–12 minutes, until the surface springs back when touched.

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2. Roll the Warm Cake

While the cake is still warm, place a clean towel over it and flip it out carefully. Peel off the parchment paper.

Roll the cake with the towel inside, starting from the shorter edge. This helps it form the perfect shape without cracking later.

Let it cool completely before filling.

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3. Prepare the Cream Filling

In a chilled bowl, whip the heavy cream, powdered sugar, and vanilla until thick and fluffy. It shouldn’t be runny—stiff but creamy is perfect.

Set aside two whole bananas. They will sit inside the roll and give that iconic swirl and texture.

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4. Assemble the Swiss Roll

Gently unroll the cooled cake. Spread an even layer of whipped cream across the entire surface.

Place the whole bananas along one end of the cake. Carefully roll it again, this time without the towel, wrapping the bananas inside.

Use cream to seal the edge if needed. Wrap the roll in plastic wrap and refrigerate for at least 1 hour to firm up.

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5. Make the Chocolate Ganache

Heat the heavy cream until just steaming. Pour it over the chopped chocolate and let it sit for 1 minute. Stir until smooth and shiny. Add butter for extra gloss.

Let the ganache cool slightly so it thickens before pouring.

Remove the chilled cake from the fridge and place on a serving plate. Pour the ganache generously over the top, letting it drip beautifully down the sides.

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6. Decorate

Top the roll with fresh banana slices and chocolate chips, just like in the photo. Add a drizzle of extra ganache for a luxurious finish.

Refrigerate for 20 minutes before slicing.

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✨ Final Thought

This Chocolate Banana Swiss Roll is more than just a dessert—it’s a showstopper. Every slice reveals a gorgeous swirl of chocolate sponge, velvety cream, and fresh banana, all wrapped in a glossy chocolate coat. It’s soft, light, rich, and unbelievably satisfying. The best part? It looks complicated, but every step is simple when done with patience and love. Make it once, and it will become a family favorite forever.

Bon appétit! 🍌🍫✨