Okey, i have tried an own thing...and it worked so i wanna explain how i have done this for anybody who has the same problem, so here it goes:
I have made a shapeless crafting recipe where i put my item "braunkohle" in and get an diamond and there will be a stick left, where i have put my item "Braunkohle. It worked for vanilla items only as well, so here is my code so you can see how i have done this:
GameRegistry.addShapelessRecipe(new ItemStack(Items.diamond), new ItemStack(braunkohle.setContainerItem(Items.stick)));
GameRegistry.addShapelessRecipe(new ItemStack(Items.blaze_rod), new ItemStack(Items.apple.setContainerItem(Items.stick)));
Thanks for all, this thread can be closed now
PS: Thx Choonster, that works also