1 Thaw the frozen puff pastry at room temperature for an hour.
5 Unfold the pastry dough and cut it into 12 3-inch squares using a pizza cutter.
2 Preheat oven to 350 degrees.
6 Lightly grease a mini muffin tin. Place a square of puff pastry dough into each space on the muffin tin. Press the dough square down to form little cups.
3 Place a small cube of Brie cheese into each pastry cup.
7 Top each piece of cheese with 1 tsp of cranberry sauce.
4 Bake for 15 minutes until the edges of the pastry turn golden brown.
8 Garnish each bite with a sprig of rosemary.