This savory tart with radicchio and potatoes is a must-have on dinner tables throughout Northern Italy, especially when it's chilly out. In places like Lombardy and Veneto, tarts are pretty much ...

In the early 1980s, when radicchio was just appearing in restaurants like Chez Panisse and Fourth Street Grill in Berkeley, I had a vegetable seed company. Le Marche Seeds International sold European ...