My first quiche was a voluptuous open-faced tart with smoky lardons, Gruyère and golden strands of sautéed onion baked in custard. It was called a Lorraine, and I was seduced. Later, I learned it was a misnomer according to the French society that defined quiches, saying that only bacon should be in the seasoned custard. With cheese added, it becomes a Vosgienne (referring to the Vosges region of France); sautéed onions in the mix make it Alsaçienne. But Lorraine became the familiar name for many of these savory tarts.