Nigella uses dry marsala wine in her new book Nigellissima. I have located sweet marsala, where can I buy dry marsala? Thanks, Brian.
Marsala is a fortified wine from Sicily and sweet (dolche) marsala is much more widely available than dry (secco) marsala so you may need to search around a little. At time of writing the Curatolo brand of dry marsala is available in some Waitrose stores and also on line via Waitrose and Ocado. You may also be able to order a bottle via your local off-licence or wine merchant (Curatolo and Pellegrino seem to be the best-known brands).
Marsala is made using the perpetuum system. Different vintages are blended together to produce the wine. This is very similar to the solera blending system used for sherry and if you really can't find dry marsala then you could try using a dry sherry as an alternative. We would suggest a darker style dry sherry such as Amontillado or Oloroso (though make sure it is not labelled as a cream/dulce/sweet/rich Oloroso as these are sweet versions and not strictly traditional Oloroso sherries).