According to ABC, 12-year-old Katie Francis has broken a 30-year-old record of 18,000 boxes. She was also the top cookie seller nationwide in 2013.
The Oklahoman points out Katie broke the state record in Oklahoma the last two years. She told the paper she has sold thousands of boxes in the past.
"Well, the first year that I sold, I sold 2,004. The year after that, I sold 7,482. And then just this last year, I sold 12,428."
So what's Katie's secret? According to USA Today, it's a whole lot of dedication.
Katie says she asks everyone she sees if they would like to get a box. On school days, she would be out selling cookies all over the area until after 9 p.m. And, on weekends, she'd spend at least 12 hours out on the streets selling cookies, with her mom driving her around the city.
Katie's mom told the paper her daughter hopes to sell 100,000 boxes of girl scout cookies by the end of her girl scout career. As for this year, Katie still has a few more days to sell cookies. Girl Scout cookie sales end March 30.