I have managed to procure a packet of US imported pretzel M&Ms. ONe pound seventy nine!!! (I didn't see the price at first, I was too busy gleefully racing to the till to pay and by the time i realisdd that the shopkeeper was basically about to shaft me up the arse, I had pretty much committed to the maneouvre and had to proceed.)
I will try them shortly. I'm a little bit dubious.