Supertaster
I have become mildly obsessed with this bloke. He does very concise reviews of junk food. That's it. It's hard to say what makes them so compulsive but compulsive they are. Maybe it's just constant amazement at the sheer quantity and variety of American junk food. He's quite a funny bloke too - which no doubt helps - but they really are more or less straight reviews of junk food. Perhaps his vidz are laced with fat, sugar and MSG and that's why you keep coming back for more. Hmm...
Coupla random examples...
Red Bull Blue/Silver Editions (for Knock

)
Microwave Sausage and Egg Breakfast Sandwiches (am guessing the US equivalent of Rustler's)
Vegemite (rather him than me)
And many, many more.