As regards desserts, you can definitely take your pick, as whatever dessert you decide to make, you can decorate according to Halloween theme.
As per decoration, you can just use some colored icing and make pumpkin-, ghost- and bat-shaped cookies. Or, you can use sugar paste and decorate cakes and cupcakes with spiders, zombies and mummies’ faces, pumpkins, skeletons, tombstones, etc.
Here you have another tips: make a rectangular cake covered with crumbled chocolate cookies to simulate the soil, and add some tombstone-shaped cookies. For a quicker dessert, you could make chocolate mousse verrines, covered with crumbled chocolate cookies, and insert a cat tongue with the R.I.P. writing in each one.
If you prefer to make some traditional Halloween desserts, these are the most popular ones:
Candied apples weren’t originally created as Halloween treats. In 1908, William W. Kolb, a Newark candy-maker, invented them while searching new Christmas recipes. They were a hit, and soon spread at the circus and in candy shops across the country. Then, as apple picking is in Halloween period, candied apples were introduced as a Halloween treat as well. Now, of course, they are seen as typical of Halloween feast, with a clear reference to Snow White withched apple.
Even if, strictly speaking, it is typical of Thanksgiving Day, pumpkin pie is also made for Halloween, clearly because of the key ingredient, pumpkin, uncontested symbol of All Saints’ Eve. It was invented in North America, and soon exported to France and then to England.
Pumpkin pie has a bottom pie crust, filled with a pumpkin custard, flavored with cinnamon, nutmeg, cloves and ginger. It is often garnished with whipped cream.
Soul cakes are small round cakes traditionally made for All Saints’ Day or All Souls’ Day. They used to be given out to the “soulers” (mainly children and the poor) who, on Halloween, would go from door to door, singing and saying prayers for the dead. Every cake that was eaten would represent a soul that was being freed from Purgatory. This practice is usually considered as the origin of modern trick-or-treating, when children in costumes use to go from house to house in order to ask for treats, usually candies and chocolates.