I know it's a joke but while you can't get them made with cauliflower, Reese does make a sugar-free version that is sweetened with maltitol.



 You can't tell them apart from the original Reese's peanut butter cups until a little while after eating them at which point they actually become quite similar to cauliflower.  A few years ago, my brother and I... ah!  Nevermind - long story short: If you eat more than a couple, the gas pain will be intolerable but you will be able to power your house for several days on the gas you produce.  This might actually be a solution to Europe's current energy woes.