الكيكة اليابانية

Separate the egg yolks and whites into two bowls.

Melt the butter and add milk, stirring well.

Sift the flour, add the milk and butter and mix them together well. Then add the egg yolks gradually and mix them together well. Then add the vanilla to the mixture.

Beat the egg whites until foamy, then gradually add sugar.

Gently fold the egg white mixture into the yolk mixture.

Pour the batter into a cake mold (22x22x7.5 cm).

Place a tray of boiling water beneath the mold in the oven.

Bake the cake at 150°C (top and bottom) for about an hour.