Preheat oven to 425°F. Slice off the top rind of the brie and scrape out a small amount of cheese to form a shallow hollow in the center.
Place cheese in a small baking dish or pan that has been lined with parchment paper.
Mix cranberry sauce, brown sugar, vanilla, orange zest, and nutmeg. Top the brie with this cranberry mixture and sprinkle hazelnuts over it.
Bake for 8 to 12 minutes or until the fruit is bubbling and the cheese is gooey. Take the cheese out after it has softened but before it collapses.
Lift the parchment paper and use a spatula to carefully slide the cheese onto a serving dish. Serve immediately with crackers.