In case guzzling down cups of coffee and cans of Diet Coke or Red Bull just doesn't deliver enough caffeine to your bloodstream, manufacturers are now considerately adding caffeine to food: As well as the supercharged versions of gum, candy and even instant oatmeal that are available, a company has introduced Engobi, the world's first "caffeine infused munchie." As Slate reporter Mason Currey discovers, Engobi is a sugary puff whose packaging promises to help you "to get wired. I mean really wired."