Easy Fruit Tarts

• All-purpose flour for dusting
• 1 sheet frozen puff pastry, thawed but still very cold
• 1 large egg beaten with <

Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper.

On a lightly floured work surface, gently roll out the puff pastry into a 9-inch (23-cm) square. Using a sharp paring knife, cut the pastry into 4 equal squares, then gently score a ¾-inch (2-cm) borde