Whisk eggs with 1/2 tbsp. sugar, add sifted flour with baking powder.
Pour batter onto greased baking paper. Bake the cake at a temperature of 180 degrees until cooked.
Roll the baked cake into a roll, let cool.
Mix raspberries with sugar. Unroll the roll, lay out the filling, roll up again into a roll. Decorate with raspberries, sprinkle with powdered sugar.