I must agree with Mr. Protozoa. The Kit Kat bars manufactured outside the U.S. are different. They use Nestle chocolate instead of Hershy's chocolate. The chocolate used to make the non-U.S. version of the Kit Kat is the exact same recipe as the chocolate found in Nestle Crunch. Surprisingly, the non-U.S. Kit Kats tastes strangely similar to Nestle Crunch (the chocolate is the same, and the little rice crispies have pretty much the same flavor as the Kit Kat wafer).

If you live near Half Moon Bay, California, I found a little store off main street there named The Village Store. It imports little treats from England. One of which is the Nestle Kit Kat. So, if you are in the area, you can pick one up there.