Her name is Shirley Kost, but the Texas Rangers know her as "The Cookie Lady."
She's rarely misses a game -- or a chance to bake cookies for her favorite team.
"I know I've cooked over 4,000 this year," she said in her kitchen as she was baking the latest batch. "I take cookies with me every day."
She started in 2000 when Rangers pitcher John Wetteland gave her a ride on his motorcycle at spring training. She made cookies to say thank you -- and never stopped.
"I love the Rangers," Kost said. "It's satisfying. I meet a lot of new friends and keep in contact with them over the years. I don't know, it's become my thing."
A few years ago, the Rangers named her their No. 1 fan and gave her a mixer, which she still uses to whip up cookie dough.
She and her husband, Calvin, who works at the ballpark as an usher, have thrown out the first pitch at games.
And in a back room of her house, she's got hundreds of autographed baseballs and bats and photos of her with players.
Like all Rangers fans, she's excited to see the team in the World Series for the second year in a row.
"It's been unreal," she said. "I think I've been dreaming. Am I going to wake up from this?"
But win or lose, she says she'll always be The Cookie Lady -- "as long as my ovens work."