Possible Clues:

• Reuben base
• Dense food dry, a beer is drunk
• Deli loaf
• Dry, needing a beer badly? Then use your loaf
• Bagel alternative
• Toasting candidate
• A beer drunk with dry food
• Pastrami sandwich choice
• Corned beef is usually ordered on it
• Loaf that is dark in colour and has a dense chewy texture