Possible Clues:

• Ice cream treat
• Chocolate-coated frozen treat
• Nestlé trademark
• Treat once known as an I-Scream Bar
• Treat first called I-Scream Bar
• Treat originally called an 'I-Scream Bar'
• Klondike bar relative
• Ice cream treat since the 1920s
• Treat first called an 'I-Scream Bar'
• An ice cream treat