Buddy makes an elaborate chocolate cake for a couple's anniversary, which includes ingredients consisting of Hershey's products. Carlo's Bakery celebrates their 100th anniversary since its opening in 1910 with a street party, complete with a huge "timeline" cake outlining its history. Buddy shows his bakers a huge warehouse he has leased, which will play a role in the bakery's future.
Buddy makes a Mother's Day celebration cake for the Adoptive Parents Committee, which is a nonprofit support group for adoptive parents. Buddy surprises his wife on Mothers day by having his children decorating a cake for her. The family celebrates as Lisa, Buddy's sister, gives birth to her child, a daughter named Isabella.
It's Easter time and the shop is busy as ever. Buddy makes a sandwich cake for the 100th anniversary of Fiore's, a sandwich shop next to the original Carlo's Bakery. Joey, Sal, and Cousin Anthony make items for the bakery in honor of St. Joseph's Day, and Buddy and Maddelena stage an intervention for Mauro, convincing him to make lifestyle changes to become more healthy.
After a unique cake consultation, Buddy has to find a way to make several cakes for fourteen couples getting married on Valentine’s Day; Cousin Anthony requests a special valentine dessert for his date. Meanwhile, Mary asks Buddy to take time out of his busy schedule to make a special heart cake for a newlywed couple.
In the third season premiere, Buddy and his team are called on to make a special cake for New Jersey Governor Chris Christie’s inauguration ball. Buddy also decides to surprise his wife Lisa by making a life-size version of her in cake form for a surprise birthday party. Meanwhile, Mama Valastro surprises everyone at Carlo’s Bakery by announcing her retirement.