But Mars Wrigley, the company that owns M&M's, is going all in this year on Halloween. In addition to the new pumpkin pie ...

Their finding: Reese’s Peanut Butter Cups were the most popular Halloween candy sold via Instacart. Rounding out the top 10, in order: -M&M’s -Snickers -Peanut M&M’s -Twix -Kit Kat -Hershey ...