Granny is also notorious as being one of the worst cooks in the world.

He is also notorious for being a bad cook.

She was, almost without exception, the worst cook that Pete had ever come across.

Granted, he doesn't want to hang Americans for being bad cooks.

She would die of shame, thinking you believe her a bad cook.

She misses her (possibly) dead husband and is shown to be a bad cook.

She is also known to be a bad cook.

His sister had to be the worst cook in the world.

I ain't too bad a cook, but you better get here by six.

My wife is the worst cook in the world.