Didi Dodo, Future Spy: Recipe for Disaster (Didi Dodo, Future Spy #1)

In this series opener, Koko Dodo the cookie chef has a big problem.
Today is the day of the royal cookie contest, and someone has stolen his
top-secret fudge sauce! Luckily, a spy enters the scene just in time
(or rather, crashes in on her roller skates): Didi Dodo! This might be
Didi's first case ever, but she has a daring plan to help Koko. Koko
would prefer a safe, simple, sure-to-work plan, but without another
option, he and the amateur sleuth take off on a wacky caper full of
high-speed chases and big belly laughs that could only come from the
mind of the inimitable Tom Angleberger. Each book in the series will
focus on a food-related mystery.