My Attack Stat is Negligible So I Can't Help but Rely on Critical Hits to Succeed!

Being summoned to another world, Claude Evers finds himself in an all too familiar situation: He is a hero, destined for GREATNESS.
There's only one problem - his attack and magic capabilities are basically zero. He must rely on his wit and personal abilities, rather than his attributes, to succeed.
That, and his mysterious 999 Critical stat, which appears to be maxed out.
Faced with no other choice, Claude becomes his master's... chef?
With such fearsome enemies in this new world, what solutions can Claude hope to cook up?