Preheat oven to 200°C. Line a large baking tray with baking paper.

To make tart case, place pastry sheets side by side on the lined tray. Brush egg wash along the long edge of one sheet, then overlap with the other by 2cm to create a large single sheet measuring approximately 36cm x 20cm.

Fold and pinch all four sides to make a 2cm border, pushing down to seal. Brush border with egg wash. Using a fork, prick the base of the tart all over.

Place in oven and bake for 20 minutes or until the pastry is golden.

Remove from oven and spread base of pastry with dip.

How to prepare puff pastry

Meanwhile, place vegetables in a large bowl. Pour boiling water over vegetables, steep for 1 minute to blanch, then drain and pat dry with kitchen paper.
Scatter vegetables over tart and crumble over goat’s cheese. Drizzle with oil and vinegar glaze. Serve with mixed herbs.