Cut the puff pastry into square shapes, approximately 10-12cm on each side.
Spread the tomato sauce on the pastry.
Place the mozzarella on top.
Fold the pastry into a triangle or rectangle shape as desired.
Remember to press the edges to prevent the pastry from opening during baking.
Preheat the oven to 200°C. Place the pastries on a baking sheet lined with parchment paper. Bake for about 15-20 minutes or until the pastries turn golden brown.
Serve hot so the cheese can be attractively pulled into strings.
If using an air fryer like me, maintain the temperature at 200°C and use a basket with parchment paper to prevent sticking. After 10 minutes, remember to flip the pastries to ensure they brown evenly on both sides.