What are the Cullens cooking in kitchen?

The Cullens, being vampires, don't actually cook in the traditional sense. They don't eat food like humans do.

Here's a breakdown of how their "cooking" might work:

* Blood: The Cullens get their sustenance from blood, which they usually obtain from animals. They don't eat human blood, though there are exceptions in the series. They could potentially have "blood kitchens" where they store and prepare animal blood.

* Human food for appearances: To blend in with humans, the Cullens sometimes make human food for appearances. This is primarily for the sake of Bella, who is human, and for maintaining their human cover.

* No real cooking: The actual "cooking" would likely be done by Bella, as she's the only one who can eat human food. The Cullens might simply warm up pre-made meals or have someone else do the cooking for them.

So, while the Cullens might have kitchens for appearances, they wouldn't be cooking anything in the traditional sense. Their "food" is blood, which they wouldn't cook.