Depending on the abilities of the dead person (and of the cooker), quite likely. I'd be able to have the mind of a world class chess player and the manipulation skills of a cult leader.
I'd conquer the world within a couple of months. And get bored within a couple of days.
A man builds. A parasite asks 'Where is my share?'
A man creates. A parasite says, 'What will the neighbors think?'
A man invents. A parasite says, 'Watch out, or you might tread on the toes of God... '