|Castor sugar/Powdered sugar||3 Teaspoon|
Place eggs and sugar in a bowl over a half-filled pan of boiling hot water and beat briskly with an electric or rotary beater until sufficiently stiff and the whisks are able to hold the mixture for a few seconds without dripping down.
This process will take 15-20 minutes.
Remove the bowl from hot water and fold in the flour very lightly with a wooden spoon.
Pour the mixture into the prepared cake tin taking care that the mixture is around the edges and is flat all round.
Bake in a hot oven for 10-15 minutes.
Remove from the oven and invert onto a wire rack.
Cool before , removing the paper.