Cupcake, feeling drab because he is only vanilla, and his friend, Candle, come up with a plan to make themselves stand out in the crowd.

Emma's younger brother Jake has tonsilitis and makes life difficult for Emma, while the Cupcake Club girls are spoiling him with cupcakes and little gifts.

Hudson Avery gave up a promising competetive ice skating career after her parents divorced when she was fourteen years old and now spends her time baking cupcakes and helping out in her mother's upstate New York diner, but when she gets a chance at a scholarship and starts coaching the boys' hockey team, she realizes that she is not through with ice skating after all.

When fashionista Mia hears someone is starting a fashion club at school, how can she resist? After all, working in fashion someday is her dream. But can she manage being in two clubs at the same time, or is she spreading herself too thin? And will her Cupcake Club friends still be as sweet to her, or will Mia have to choose between cupcakes and fashion plates?

When Katie's best friend Callie leaves her for a clique called the Popular Girls Club on the first day of middle school, Katie decides to find a group that she can join.

"Alexis leaves a Valentine's Day surprise for her crush. Does he like her back? Despite objections from her Cupcake Club pals, Alexis makes a special valentine cupcake for her crush, Emma's older brother Matt, and leaves it for him next to his computer ... But ever since Alexis left the cupcake, Matt's been acting really uncomfortable around her. Does Matt want to be her valentine or doesn't he?"--

Katie finally agreed to meet her dad who hasn't seen her since she was a baby, and she's filled with mixed emotions and questions. On top of all that, her mom's boyfriend just told her he's going to propose to her mom.

Thank goodness Babymouse ate all of the Christmas cookies her mom made for Santa. Now she can make him something he really wants-CUPCAKES! But wait . . . what's that rumbling in the other room? OH NO! A DRAGON!!!!! Can Sir Babymouse defeat her fiery foe and save Christmas?! Or at least save a cupcake or two? Maybe not. . . .

Hired with the Cupcake Club to serve a huge order at a neighbor's outdoor party, Alex, knowing that her crush will be in attendance, struggles to find just the right outfit when she discovers that she has reached an in-between size.

When The Cupcake Club's members hear that Sadie's basketball coach, Coach Walsh, is sick and must take the year off for treatment, they rally together to raise money for cancer awareness with a huge bake sale goal--20,000 cupcakes and 100,000 dollars.