Prepare the Oven and Cake Mixture: Preheat your oven to 180 degrees Celsius. In a mixing bowl, beat the egg whites until stiff, then gradually add the egg yolks and sugar, beating until smooth. Fold in the flour and baking powder gently.

Prepare the Pan: Grease a 38 x 26 cm pan with butter or margarine. Line it with parchment paper and grease the parchment as well.

Bake the Cake: Pour the cake batter into the prepared pan and bake for about 15 minutes. After baking, check with a toothpick to make sure it comes out clean.

Cool and Fill the Cake: Once done, turn the cake out onto a clean surface. Fill it with the coconut filling (prepared next) and gently roll it up using the parchment paper.

Make the Coconut Filling: In a pot, combine the condensed milk with grated coconut. Cook on medium heat until thickened, optionally adding margarine for richness.

Prepare the Ganache: Chop the milk chocolate into small pieces and melt it in the microwave. Once melted, mix in the cream until you achieve a silky texture.

Prepare the Coconut Syrup: In another saucepan, combine the grated coconut with sugar and simmer until it becomes a thin syrup.

Your Delicious Prestige Roulade is ready to shine!