The Simpsons Jelly Fries

My wife bought this pack of jelly fries for me some time ago from a motorway service station and now I can capture the moment for posterity, I've decided to open them up.
You get a pack of jelly fries (obviously) a shaker of super sour powder and a bottle of super sour ketchup. Some considerable effort has gone into providing everything you may possibly need for the ultimate jelly sweet experience.
The fries come in...well...a fry box that has the Kwik-E-Mart brand on it to give it some Simpsons authenticity (although I don't recall Apu ever selling fries. Hotdogs maybe). The super sour powder shaker has a twist top dispenser lid and the sauce bottle has a nice squeezy feel to it.
The fries themselves are already covered in sugar and have a faint lemony taste. So I decided to spice them up with a liberal sprinkling of the super sour powder. Whoah...that right there is the Ronseal of super sour powders. It does exactly what it says on the tin. When I'd managed to unsuck my cheeks, I dabbled on some of the sauce, which claimed to be sour but certainly didn't seem it. Although I could have sucked a lemon after eating that powder and not noticed. Overall the fries were ok, but the experience wasn't quite as tantalising as the packet suggested. I certainly never felt as though I was eating real fries at any point. I'm also suprised at the sourness of it all. I'm sure these are aimed at kids, but what would they use that powder for? Dares?