Separate yolks and white. Leave the yolks in the room temperature and refrigerate the white.
Sift plain flour and baking powder. Set it aside.
Place butter, milk and honey in a microwave proof bowl and cover with cling wrap.
Microwave the milk and butter mixture for 1 minute on 600w to dissolve butter completely.
Make meringue. Place egg white and 1/3 of the sugar and beat. Add another 1/3 of sugar and beat. Add the remaining of the egg white and beat until the meringue is shiny and forms a stiff peak.
Add all egg yolks at once and mix well.
Fold the sifted flour in three different times.
Take a scoop of the mixture from step 7 and add it to milk and butter mixture.
Mix them well, then return it to the flour and egg mixture and stir wll to make batter.
Heat 24cm crepe pan grease the surface with oil and spread flat thinly and rectangle shape if possible.
When bubble formed, flip it over carefully to not break it and cook the other side briefly.
Place the first layer on a chopping board. Place s prepared rolling pin over the edge and roll.
On the crepe pan grease the surface with oil and spread the second layer.
When bubble formed, place the core on the edge of the batter and roll.
Repeat the process for remaining batter. Cool the cake down. *2 Take the core out and slice it about 2cm (0.8 inch) thick to serve.
Video
Notes
*1 This recipe made about two 9cm(3.5 inch) in diameter x 15cm (5.9 inch) in length Baumkuchen. *2 I cooled the cake over a pound cake tin so that it keeps the round shape.