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Banana Swiss Roll Cake

The must-try summer dessert! Whip up the most delightful Banana Swiss Roll Cake with this simple recipe.
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Ingredients
  

For the sponge cake:

  • 5 eggs
  • 6 tbsp granulated sugar
  • 4 tbsp all-purpose flour
  • 1 tsp baking powder
  • 1 packet vanilla sugar or 1 tsp vanilla extract
  • 100 ml about ½ cup water
  • 3 tbsp sunflower oil
  • Pinch of salt

For the filling:

  • 2 large bananas

For the pastry cream:

  • 500 ml 2 cups milk
  • 1 tbsp butter
  • 100 gr granulated sugar about ½ cup
  • 40 gr cornstarch about 3 tbsp
  • 2 eggs
  • 1 tsp vanilla extract
  • 100 gr heavy cream about ½ cup

Instructions
 

  • Preheat the oven to 170°C (340°F) without fan setting.
  • Separate the egg yolks and whites into two bowls. Whip the egg whites on low speed for about 30 seconds until frothy. Add a pinch of salt and whip until stiff peaks form.
  • In another bowl, mix the egg yolks and granulated sugar on low speed until combined. Sift in the flour, baking powder, and vanilla sugar. Mix on low speed for 1 minute.
  • Step 4: Gently fold the egg yolk mixture into the whipped egg whites in three batches using a spatula. Be careful not to deflate the egg whites.
  • Line a baking tray with parchment paper and grease the edges. Spread the batter evenly on the tray and tap it to remove air bubbles.
  • Bake on the middle rack for 15 minutes. Remove from the tray and parchment paper while warm, trim the edges, and roll the cake into a log with a kitchen towel. Let it cool for 1 day or at least 2 hours.
  • For the pastry cream, heat the milk and butter in a saucepan. In a separate bowl, whisk the eggs, cornstarch, and sugar until smooth.
  • Gradually add the warm milk to the egg mixture while whisking. Transfer back to the saucepan and cook over low heat, stirring until thickened and boiling. Stir for 3 more minutes, then cool with plastic wrap touching the surface.
  • Whip the heavy cream to soft peaks and fold into the cooled pastry cream.
  • Unroll the cake, spread the pastry cream, place banana slices on the front edge, and roll tightly. Chill for 3 hours. Dust with powdered sugar, garnish with banana slices, mint, and honey before serving.