Gelato di Crema

The restaurant Diana in Bologna is justly famous for the handmade pasta from which it fashions its rigorously classic tortellini and green lasagne. No less extraordinary is its own custard ice cream, the recipe for which I have generously been given permission to publish. In a city where breathtakingly good ice cream is as common as, say, hot dogs in Times Square, this one may be the very best of all. Diana serves it with hot bitter chocolate sauce, but it is no less good plai