You get it at the workshop.
buy one
you get it from tv shopping
Not much that is good. I would recommend you get the kitchen.
Get a kitchen when you expand your house.
you need the sprite shopping channel.
An oven
Once you have the kitchen you can buy all the apliences through the Harvest shopping network.
Get tv shopping channel, then upgrade your house.
You don't "Harvest food" You harvest vegetables once you have grown them.If you want to cook food expand your house and buy a kitchen
Upgrade Your House ( Last Upgrade )
Buy the kitchen then cook egg,flour and butter.
you need a kitchen and indigo grass and cook it