We tried growing them in our cellar Jethro, with one of those starter kits. Didn't have much success and assumed the kit was in some way defective, so looked into what was involved DIY. Seems compounding the compost they grow in is rather complex, so at that point we gave the idea up. Of course you need mushroom spores as well.
Unfortunately I can't remember the sites I looked at because it was a long time ago. But I don't think it will be simple as you hope.