Tamaki~
You do, he tried one time and burnt it. Burnt it so bad you told him that he'll never cook again. Of course he went to his corner and grew mushrooms like a little bitch but you still love him
Hikaru~
You do, he is an alright cook so sometimes he will cook but most the time its you. He's too lazy.
Karou~
He does. He likes to cook for you so he don't let you cook.
Haruhi~
You both do. You guys enjoy cooking time together.
Kyoya~
He does. He thinks you will burn the house down.
Hunni~
Neither you guys always go out!
Mori~
He does. He likes cooking but sometimes he will let you.