As a Californian trapped indoors by East Coast snow, I was running out of things to eat. It was way too cold to leave the house. A whole day stretched ahead, wide and open. If you have a TV, then you're set. If you don't...well, thank goodness for friends who happen to have a big dining room table, a pile of apples in the corner and enough curiosity to humor a restless house guest. Because, to pass the time, I suggested a lesson on stretching strudel. My host, who once watched his grandfather from the Old World make the famously flaky pastry, had never tried it. We set about updating his memories to include an actual recipe. One day soon, he'll be able to pass along the tradition to his own little daughter when she's ready to tie on an apron.