I do love the sour cherry season! And when the fresh sour cherry season is here then I must bake sponge cake with sour cherry as often as possible :)
You may find my sponge cake recipe here and here. But this time I added 2 or 3 tbs cocoa too and used another type of cake form. By the way we call this form "őzgerinc" in Hungarian which means "deer spine" form. If you also choose this form then the baking time will be a little bit longer.