Le Thourin

Le Thourin is another soup from southwestern France, this time from Périgord. One white version is creamy and thick, based only on onion and milk spiked with garlic; another more closely resembles Gratinée Lyonnaise. The common denominator seems to be onion and garlic, here combined with tomato for a lively first course. It is quick to prepare but must stand an hour or two so the flavor develops. Need I say that fresh ripe tomatoes are essential?