Arrange sliced peaches in the center of the pastry.
Place pastry in oven and bake until puffed and golden brown, approximately 10 minutes. Remove from oven and press center of the pastry flat up to the point where scored in step 2. This creates an edge for the dessert.
Brush top of pastry with butter and score pastry two inches from the edge.
Place puff pastry on kitchen pan lined with buttered parchment.