Looking for a book for older kids that celebrates diversity? Enjoy this funny, heartwarming and relatable sister adventure perfect for young middle grade readers aged 8-12 by author Erin Ewens Brown.

Marley’s going all out with her latest invention, the Cupcake Contraption, designed to thrill her neighbors with sugary goodness at their village celebration. As she tinkers with her machine alongside her sassy little sister, they encounter flying cupcakes and survive a frosting hurricane.
 
After successfully conquering the machine construction, Marley turns her attention to the cupcakes themselves, which she finds lacking in the perfect vanilla flavor. A wish and a coin cause her cupcake machine to malfunction, transporting the girls to a place where vanilla reigns supreme.

Ooooo, girl, you'd better figure out how to get home before Mama finds out!