After playing around with the credo yesterday I have a few concerns.
My main concern is with how "cooking" is defined at the moment. I'm not sure if it's an oversight but making dough does not fall under the cooking category and so double yield, quality bonus and faster crafting speed does not apply when crafting it. The same goes for any cooking material such as butter, grinding flour, etc.
When the credo is applied, it's great. But ignoring the entire baking side of cooking seems a little 'off' to me.
Is this is an oversight? Atm the credo is only good for end-result crafts like buttered cave bulbs or red shred salads.