There are people who have a minhag not to make brachos on dessert altogether. I heard that some people have a mesora that the Chofetz Chaim was chozer on his psak to say a bracha.
Others do say brachos on some desserts, depends what type of food it is. Ice cream is a shayla whether it needs a bracha so some people will make a shehakol on sugar or candy before eating ice cream.
Some will eat bread together with the dessert to remove any need for a bracha.