Welcome to the Cake Decorators Q&A

we do not have self raising flour in Germany, what can I use ?

Hi BBieber

You’ll find an answer here http://www.cakeflix.com/questions/sponge-cake-recipe-using-baking-powder
I have used the Dr Oetker substitute which works fine. If you do not have this brand any will be ok, just check the instructions on the packet.