【baumkuchen】
1.
Add milk to the chocolate, melt in water and set aside.
2.
Separate the egg white and egg yolk, add 40g sugar to the egg yolk and beat until it becomes whitish and swells smooth.
3.
Mix the melted chocolate and egg yolk paste evenly.
4.
Whip the egg whites, add the remaining sugar when distributing 5, and beat until neutral foaming to dry foaming.
5.
Sift the cocoa powder into the egg whites and mix well.
6.
Mix the egg white paste and egg yolk paste into a baking tray and smooth them out, bake the middle layer for 50 minutes, and put water on the bottom layer.
7.
After roasting and cooling, cut into 6 equal portions on average.
8.
Spread the whipped cream distributed up to 8 on the cake slices.
9.
Roll the cake slices layer by layer, and roll the last piece and cut it diagonally.
10.
Just decorate with cream.