Related Clues:

• Cookie since 1912
• It comes in black and white
• Hydrox competitor
• Astringent
• Cookie in stacking contests
• Bakery offering
• It may get a licking after dinner
• Chocolate-and-cream cookie
• Modern ice cream flavor
• It's dipped in milk
• Popular cookie
• Mountain: Prefix
• Snack in a stack
• Three-ply snack
• Sarcastic