Some years ago the Jewish Daily Forward published an essay of mine entitled Trans Fat: How a Staple of Pareve Foods is Hurting Our Waistlines. In this essay, I explained that processed-food manufacturers at the turn of the twentieth century attracted large numbers of customers from among recent Jewish immigrants with marketing campaigns based on the fact that the partially-hydrogenated (i.e., trans) fats in newly developed shortenings were pareve, meaning that they contained no meat nor dairy ingredients. This was revolutionary, because it allowed desserts traditionally made with dairy ingredients to be made suitable for meat meals. Procter & Gamble advertised that “The Hebrew Race has been waiting for 4,000 years” for a solution to its shortening problems. Endorsements were received from rabbis and other community leaders. Margarine, Crisco, and non-dairy “whiteners” rapidly supplanted traditional fats to become an integral part of what we now consider traditional Kosher cooking. In fact there is nothing traditional about it, and a thousand years of kitchen wisdom were lost in just two generations. Continue reading →