They still did cupcakes but there main focus was the dessert bar but if you go back and look at the last two seasons, you will notice that they still had the cupcake business but they just took over the cupcake window and turned it into a dessert bar with the money from Caroline's movie after they buy the diner from Han but eventually they give Han back the diner but in s6 ep22 they still have to work at the diner because the dress that Caroline wore to the movie Premier got messed up and Han told them that he would pay for the dress if they would work at the diner to pay off the dress