Nitrous oxide

Thanks to a nationwide shortage of nitrous oxide, a critical ingredient in aerosol whipped creams, some major manufacturers have announced that they won't be able to keep up with holiday demand.

If Italy's most celebrated modernist chef is coming over to make brunch, don't be surprised if he shows up packing a sleek nitrous oxide siphon. It's just for the breadcrumb foam.Massimo Bottura, the energetic chef ...