Creating Puff Pastry Egg Tarts can be a fun and rewarding experience if you follow these simple steps:

1. Preheat your oven: Set your oven to 400°F (200°C) and let it preheat while you prepare the tarts.
2. Prepare the puff pastry: Roll out the puff pastry sheet on a lightly floured surface. Cut it into squares or circles to fit your tart pans.
3. Line the tart pans: Place the pastry cutouts into the tart pans, pressing them gently to fit. Trim any excess pastry hanging over the edges.
4. Prepare the custard mixture: In a mixing bowl, whisk together the eggs, whole milk, granulated sugar, vanilla extract, and salt until smooth and well combined.
5. Fill the tarts: Pour the custard mixture into each pastry shell, filling them about three-quarters full.
6. Bake: Place the filled tart pans on a baking sheet and bake in the preheated oven for 25-30 minutes, or until the custard is set and the pastry is golden brown.
7. Cool: Remove the tarts from the oven and allow them to cool in the pans for about 10 minutes.
8. Remove from pans: Gently remove the tarts from their pans and let them cool on a wire rack.
9. Optional garnish: Dust with a sprinkle of cinnamon or nutmeg before serving for an extra touch of flavor.

Following these steps will guide you in creating these incredible Puff Pastry Egg Tarts effortlessly.