Preparation Steps

• Make the custard. In a medium bowl whisk together the milk, heavy cream, egg, and vanilla. Set aside.
• Prepare the bread slices. Cut the crust from the bread. Flatten the bread slices with a rolling pin; make them as flat as possible.
• Roll them up. Spread Nutella on each bread slice and roll up the bread, lightly pinching the seam to secure.
• Cook. Place 2 tablespoons butter in a frying pan and melt over medium heat. Dip the rollups in the egg mixture, and place in the frying pan. Cook until golden brown, about two minutes; flip to the other side and cook for another minute or so. You will most likely have to do this in batches. Add the rest of the butter, and continue to cook until all rollups are done.
• Roll in sugar. If you have vanilla sugar, put it in a shallow dish, and once the rollups are done cooking, roll them in the sugar until covered. If you do not have vanilla sugar, dust the rollups with powdered sugar instead. Serve immediately.