Banana and Cream Roll Cake

1. Whip all sponge cake ingredients together at high speed for 5-7 minutes until fluffy

2. Pour the mixture onto a baking sheet lined with parchment paper and spread evenly

3. Bake in a preheated oven at 200°C for about 8-9 minutes

4. Remove from oven and let cool slightly, then flip onto another sheet of parchment paper

5. Unroll the cake, spread the prepared pastry cream over it

6. Optionally spread a thin layer of whipped cream for better adhesion, though not necessary

7. Add whole bananas and any optional ingredients like chocolate pieces

8. Quickly roll up the cake tightly before it dries out

9. Refrigerate to set and chill

10. Before serving, sprinkle with powdered sugar for decoration

Pastry cream

1. Heat milk in a saucepan until simmering

2. In a bowl, whisk together flour, sugar, eggs, and egg yolk until smooth

3. Gradually add the hot milk to the egg mixture while whisking constantly

4. Return the mixture to the saucepan and cook over medium heat, stirring continuously until thickened

5. Remove from heat, stir in butter and optional chocolate until melted and smooth

6. Let cool completely, then fold in cream for a smoother texture

Tips

1. This recipe recreates the authentic taste of bakery-style roll cakes from childhood memories

2. Optional ingredients can be adjusted based on personal preference for added flavor and texture

3. Ensure the cake is rolled while still warm to prevent cracking

4. Perfect for special occasions and can be stored in the refrigerator for freshness