Category "ratio"

What is the ratio of fat to flour in shortcrust pastry?

What is the ratio of fat to flour in shortcrust pastry? I cannot find anything on the matter, and it said somewhere that it was 4:1 but I've been told different

What can I substitute the cocoa powder with for this mille crepe recipe?

I'm following this recipe of a mille crepe, where they do the crepes with cocoa powder. I want to try to make the crepes without cocoa, what should I do? The cu