Step-by-Step Instructions

1. 1.Prepare the Baking Pan and First Pastry Layer

   Grease a round baking pan (for tarts) with a little butter. Unroll the first disc of puff pastry and carefully place it into the prepared pan, pressing it gently against the bottom and sides to adhere. Prick the bottom of the pastry with a fork several times.

2. 2.Add the Nutella Filling

   Spoon the Nutella onto the pricked puff pastry base. Use the back of the spoon to spread the Nutella evenly across the entire surface, leaving a small border around the edges.

3. 3.Trim and Fold the Edges

   Trim any excess puff pastry from the edges of the pan using a pastry wheel or knife, leaving about 1-2 cm. Fold the remaining edge inwards to create a neat border. Press the border gently with a fork to create a decorative pattern and secure it.

4. 4.Prepare the Lattice Strips

   Unroll the second disc of puff pastry. For easier handling, you can place it in the freezer for 10 minutes before this step. Using a pastry wheel or knife, cut the pastry into strips of approximately 1-1.5 cm width.

5. 5.Create the Lattice Top

   Carefully place the first set of pastry strips diagonally across the Nutella filling, spacing them evenly. Then, rotate the tart and place the remaining strips diagonally in the opposite direction, weaving them over and under the first set to create a lattice pattern. Trim any excess pastry from the ends of the strips and press them gently into the border to secure.

6. 6.Apply Egg Wash and Bake

   In a small bowl, crack one egg and add a drop of milk. Whisk until well combined. Using a pastry brush, lightly brush the entire lattice top and the border of the tart with the egg wash. Bake in a preheated oven at 180°C (350°F) for 20-25 minutes, or until the pastry is golden brown and puffed.

7. 7.Serve

   Once baked, remove the tart from the oven and let it cool slightly before serving. Enjoy your quick and delicious Nutella tart!