Summer Berry Galette With Puff Pastry

  Ingredients (4 to 6 servings) 1 Sheet  of Dorset Pastry Puff Pastry (Organic or Premium) 400 to 600 grams of assorted berries 2 tablespoons of sugar 1 tablespoon of cornflour 1 egg beaten   Method Preheat the oven to 220°C/425°F Follow the instructions for...