Preheat your oven to 425°F. Line a baking sheet with parchment paper.
Prepare the puff pastry.
Lay the completely thawed puff pastry flat on the prepared baking sheet.
Spread the cranberry sauce.
Spread approximately ¼ cup of cranberry sauce evenly over one half of the puff pastry, leaving a small border around the edges.
Add the Brie.
Place small pieces of Brie cheese evenly over the cranberry sauce.
Add Parmesan and turkey.
Sprinkle freshly grated Parmesan cheese over the Brie, then layer on small pieces of fresh deli turkey.
Fold the pastry. Fold the uncovered half of the puff pastry over the filling and gently press the edges together.
Cut into strips.
Using a pizza cutter or sharp knife, slice the folded pastry into evenly sized strips.
Twist the pastry.
Gently twist each strip several times to create a spiral shape, keeping as much filling tucked inside as possible. Arrange the twists on the parchment-lined baking sheet.
Brush with egg wash.
Whisk together 1 egg and a splash of water. Lightly brush the tops of each pastry twist.
Bake.
Bake at 425°F for 20–25 minutes, or until the pastry is puffed, golden brown, cooked through, and the filling is hot.
Garnish and serve.
Allow the twists to cool slightly. Lightly dust with powdered sugar and sprinkle with fresh parsley, if desired. Serve warm!