Answer:
I am a shiny metal sheet that covers BBQ food.
I am the kind of nut that is empty at the center and has no shell.
I can be written, I can be spoken, I can be exposed, I can be broken. What am I?
Of these things - I have two. One for me - and one for you. And when you ask about the price I simply smile and nod twice.
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
Why was the cook arrested?