Host Carla Hall challenges the five remaining bakers to reinvent the Boston cream pie using that great Massachusetts ingredient, coffee syrup. In the bake-off, the competitors learn that Maine was the first state ever to make whoopie pies, and they're tasked with creating beautiful plated desserts based on this favorite treat. Carla and the judges, Gesine Prado and Jason Smith, decide which baker's time in the competition has come to an end.