I found it:
After searching many grocery stores over two trips to Bellingham I finally found boxes of Christmas Crunch at Wal-Mart. This is the first time in years that I have found the christmas cereal. And unlike this box of Christmas Crunch, my box is fresh and best before May 28, 2010. My boxes actually. Yes, I bought three boxes. I just hope that my supply will last until Christmas.
And in case you are interested, here’s the back of the box: