AYER -- Local Girl Scout Katrina Kidder has a way with cookies.
The 11-year-old Ayer resident sold 501 boxes in just about four months, earning membership to the "500 Club" for Girl Scouts who sell more than 500 boxes during the annual cookie sale.
"I had a lot of opportunities to sell," she said. "If I was driving around the neighborhood, then I could just stop at houses because I had the boxes in the back of my mom's car."
Kidder went to all seven of the cookie booths around town, including in Groton and Ayer. She also got help from her brother, who sold them to his friends at school.
She braved an average temperature of 29.9 degrees throughout the "cookie season," according to a Girl Scouts of Eastern Massachusetts press release. This year's season also had 56.4 inches of snowfall.
Kidder is one of 227 girls in the Girl Scouts of Eastern Massachusetts who gained membership to the 500 Club. GSEM celebrated club members during ceremonies at a Girl Scout camp in Plymouth and Camp Cedar Hill in Waltham.
The money helps fund Girl Scout trips, including one Kidder's troop took to Rocking Horse Ranch in New York. Because she sold so many boxes, she was able to fund her own trip.
Kidder, who has been a Scout for six years, said she decided to join because her mother was a Girl Scout.
"She told me how much fun the camping is and how many activities you can do," she said.
Kidder's favorite part of selling cookies was standing at the booth, singing songs that she made up with her friends about how delicious Girl Scout cookies are.
"It went well," she said. "It got a lot of customers."
Kidder's favorite Girl Scout activity is camping.
"It's been really fun because we've been doing a lot of campouts and arts and crafts," she said of her time in Girl Scouts. "They switch it up so they can do different things."
Follow Amelia on Twitter and Tout @AmeliaPakHarvey.