Flatten each slice of bread with a rolling pin.

Spread 1 teaspoon of Nutella on each slice, covering the edges but being careful not to let it spill over.

Roll up each slice tightly.

In a bowl, whisk together the eggs, vanilla sugar, and milk.

Quickly dip each roll-up in the egg mixture (do not soak, just dip briefly).

Heat some oil or butter in a skillet, then add the roll-ups and cook until golden brown.

Sprinkle with granulated sugar.

They're ready—enjoy!