
Rather than reaching for a jar of jam, prepare an easy-to-make homemade maple and cranberry jam and layer it into the buttery puff pastry-wrapped brie.
Preheat oven to 425°. In a small saucepan over medium-high heat, bring cranberries, granulated sugar, syrup, orange zest, orange juice, cornstarch, and a large pinch of salt to a boil. Cook, stirring frequently and smashing cranberries with the back of a spoon, until cranberries burst and jam thickens, 4 to 6 minutes. Remove from heat, stir in cinnamon, and let cool.
On a lightly floured surface, roll pastry to a 10" square. Transfer to a parchment-lined baking sheet. Place brie in the center and top with maple-cranberry jam. Fold edges of 4 corners of dough in about 1/2", then drape up and over brie. The dough should mostly cover the brie, with small gaps in between each folded corner. Brush dough all over with egg. Generously sprinkle with turbinado sugar.
Bake brie, tenting with foil if browning too fast, until pastry is lightly golden brown, 25 to 30 minutes.
Transfer brie to a platter. Drizzle with syrup.