From the LA Times
As a child in Hebrew school, I was taught the story of the Hanukkah miracle: When the Jews in the land of Israel defeated the foreigners, the priests seeking to rekindle the temple's eternal light found enough ritually pure oil for only one day. Miraculously that oil lasted for eight days.
Since then, Jews have been celebrating Hanukkah every year by lighting candles every day for eight days. Children in Israel play with dreidels inscribed with the first Hebrew letters of the phrase "a big miracle happened here"; in Washington, D.C., my birthplace, our dreidels had the first letters of "a big miracle happened there."
Until I lived in Israel, I associated the holiday with latkes, or potato pancakes. But when I moved there I discovered that for many Israelis, sufganiyot, or jelly doughnuts, are the favorite Hanukkah treat. I also realized that the connection of such foods to Hanukkah is the oil in which they are fried.
What we hadn't learned in Hebrew school was that the oil of the Hanukkah miracle was olive oil. In ancient Israel, olive oil was used for lighting lamps, for religious rituals and for cooking. Based on archaeological evidence, the land of Israel was an olive oil production center.