Creating the Christmas Vanilla Roll Cake can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C). Line a 15×10-inch jelly roll pan with parchment paper, leaving some overhang for easy removal.
2. Beat Eggs and Sugar: In a large mixing bowl, beat the eggs and granulated sugar together on high speed for about 5 minutes until thick and pale.
3. Add Vanilla: Mix in 1 teaspoon of vanilla extract until fully incorporated.
4. Combine Dry Ingredients: In a separate bowl, whisk together flour, baking powder, and salt.
5. Fold Dry Ingredients: Gradually fold the dry ingredients into the egg mixture, being careful not to deflate the batter.
6. Spread Batter: Pour the batter into the prepared pan and spread it evenly.
7. Bake: Bake in the preheated oven for 15-20 minutes or until the cake is golden and springs back when lightly touched.
8. Cool the Cake: Once baked, remove the cake from the oven and let it cool in the pan for about 5 minutes.
9. Transfer to a Towel: Carefully invert the cake onto a clean kitchen towel dusted with powdered sugar. Remove the parchment paper.
10. Roll the Cake: Starting from one short end, roll the cake up gently in the towel. Let it cool completely in this rolled position.
11. Prepare Whipping Cream: In a mixing bowl, whip the heavy cream, powdered sugar, and 1 teaspoon of vanilla extract until stiff peaks form.
12. Unroll and Fill: Once the cake is completely cool, unroll it gently and spread the whipped cream evenly over the surface.
13. Re-roll the Cake: Roll the cake back up without the towel, making sure to keep it tight.
14. Chill: Wrap the rolled cake in plastic wrap and refrigerate for at least 30 minutes to set.
15. Slice and Serve: Once chilled, slice the cake into portions and serve.

These steps will help you create an incredible Christmas Vanilla Roll Cake that is sure to be a festive highlight of your holiday celebrations!