Preheat the oven with electrical heat at 250 degrees Celsius.
Mix the eggs and sugar with an electrical mixer, make sure it is very fluffy in texture.
Add the milk, the flour and the baking powder in the batter while still mixing.
Put a baking paper on a baking sheet, and pour the batter on the paper. The batter should be as a rectangular in the shape on the paper.
Place the baking sheet in the middle of the oven for five minutes.
Take out the roll from the oven and let it rest for five minutes, then sprinkle one tablespoon of sugar on top of the roll surface.
Put the roll up side down and take away the paper from the roll.
Put the jam evenly on the rolls pale side, and roll the cake together from the short side.