crazy bread

noun2

1. •
   (US) Garlic bread stuffed or sprinkled with cheese.
2. •
   (historical) A mixture of dried herbs and grains infected with ergot, eaten during the hungry gap in medieval times.

   • Poppies, hemp, and darnel were scavenged, dried, and ground up to produce a medieval hash brownie known as "crazy bread". — 1999