User can cook things like a stove

Pros:
-user can cook anything
-user can keep things warm
-oven us infinitely big
-user can change settings
-user only needs to eat sugar for energy

Cons:
-user cooks by opening oven in stomach
-user can't change size of 'opening'
-user must take 5 mins for this
-user has no proper digestive system and can't drink a lot of water

Weakness: slow bakes
User will consume many sugary treats for this to be done