Mandy Berr is super excited that her favorite cousin in the whole world, Paige, is coming to visit. After all, Mandy is usually stuck at home with the twins and annoying little brother, Timmy, so the chance for some fun girl time is definitely worthy of many "wahoos "

But when Paige arrives, she is not the fun cousin that Mandy remembers. To start, Paige wants to call her "Manda," with no "y." She no longer likes Rainbow Sparkle, their favorite TV show. She doesn't want to bounce on the bed or play dress-up. And, in the ultimate betrayal, Paige actually likes hanging out with the twins and Timmy. Mandy does not like these changes one bit.

To try and help bring the girls together, their grandma suggests the girls make some recipes out of a special cookbook--if they can work together, she will take them to a carnival at the end of the week. But having two bosses in the kitchen isn't working out, and it looks like Mandy's visit with Paige is about to go up in smoke. Can the two cousins clear the air and whip up a fancy meal for the family?