
Spicy horseradish cream and malty Guinness mustard amp up the flavor of this home-corned beef. You might need to special-order the brisket from your butcher, and you'll have to start brining the meat eight days before you cook and serve it. The Insta Cure No. 1 is optional, but it's nice to use because it gives the meat its traditional pink color. Save the leftover corned beef and vegetables for the sandwiches and hash.
Insta Cure No. 1 is a mixture of sodium nitrate and salt that is used in cured and smoked sausages to prevent botulism. In this brine, its only purpose is to prevent the meat from turning gray, so you can certainly leave it out. You'll find Insta Cure No. 1 at sausagemaker.com.
Chile de árbol is a thin, red, very hot three-inch-long chile; sold at some supermarkets and at specialty foods stores and Latin markets.
