Sprinkle blueberries with water and toss them into a hot pan
Add brown sugar and orange zest to the blueberries
Let the berries bubble and soften
Whisk together sour cream, two eggs, sugar and a splash of condensed milk
Pour the softened berries into the cream mixture
Butter the baking tray
Cut a big circle of puff pastry and place it in the baking tray
Prick the pastry with a fork to prevent it from puffing too high
Pour the blueberry cream mixture into the pastry
Place a mold in the center
Cut even strips of pastry and weave them across the top
Apply egg wash to the pastry for shine
Place a spoonful of berries in the middle
Bake at 180 degrees Celsius for 30 minutes until golden
