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

2. Prepare Puff Pastry

Thaw puff pastry sheets according to package instructions if frozen.

Roll each sheet lightly on a floured surface.

3. Add Filling

Spread mustard evenly over each sheet of puff pastry.

Sprinkle grated mozzarella over the mustard layer.

4. Fold and Cut

Fold the puff pastry sheet in half or roll it, depending on your preferred shape.

Cut into small squares or strips for bite-sized appetizers.

5. Bake

Place the prepared pastry pieces on the baking sheet, leaving some space between them.

Bake in the preheated oven for 12–15 minutes, or until puffed and golden brown.

6. Serve

Remove from the oven and let cool slightly.

Serve warm for the best cheesy, flaky experience.

Serving and Storage Tips