Preheat oven to 400 F degrees. Line a baking sheet with parchment paper and carefully transfer the puff pastry to the baking sheet. Using a sharp knife, lightly score the pastry dough 1 inch in from the edges all around to mark a square. Then, using a fork, pierce the dough all around in the center, not the edges.
Bake until light golden brown, about 10-12 minutes, check it at 10 minutes. Remove from oven and let it cool, at least 3 minutes. using your hands, gently press down the middle area so it's lower than the edges.