PSA: if you're not Polish and you've got a Polish grocery store near you, it's quite possible you never really go in or you just pop in for the odd Zubr or Tyskie and don't touch anything else.
Do yourself a favour next time you're by, go in and pick up some of these - Jezyki (hedgehog, it's kinda cute and appropriate when you look at them) - I promise it'll change your life forever.
The shit is crack. They're absolutely amazing. Be prepared to devastate a packet in about five minutes.
As an aside, a Polish shop exploded (likely a gas leak) round the corner from my house killing five people this week. I'd say that makes this a reasonable time to go explore your local Polish supermarket in tribute.
The Polish community in Leicester are fantastic, thoughts with them.