blackstrap

noun3

1. •
   The dark, viscous molasses remaining after maximum extraction of sugar from raw sugar cane, used in manufacturing and cattle feed.

   • Smoked over cherry and mesquite wood, and dried in a convection oven, it gets its flavors from organic blackstrap molasses, Jim Beam bourbon, and salt and pepper. — 2007
2. •
   (no longer used) A mixture of spirituous liquor (usually rum) and molasses.

   • No blackstrap to-night; switchel, or ginger pop. — 1845
3. •
   (slang, no longer used) Bad port wine; any common wine of the Mediterranean.