Related Clues:

• Snack since 1912
• Black-and-white snack
• Cookie with a creme center
• See 116-Across
• Chocolate snack
• Hydrox rival
• Popular snack
• Nabisco sweet
• Hydrox alternative
• Ice cream flavor
• Lunchbox treat
• Kind of cookie
• Two-toned treat
• 'Biscuit' introduced in 1912
• Cookie favorite