For the dough

• Mix the butter with the flour until well incorporated.
• Add the sugar, then the egg and the vanilla and whisk until just combined.
• Roll the dough between 2 sheets and leave to rest in the fridge for half an hour.

For the filling

• Preheat the oven at 180˚C.
• Start by caramelizing the sugar until golden brown.
• Remove from fire and mix in the cold butter cut in cubes. Mix well.
• Pour the caramel in the dish and allow it to cool a bit.
  Place the strawberry halves on the caramel, cut side up.
• Sprinkle with the sumac. Cover with the dough and tuck the edges all the way around.
• Cook for 40mins in the oven until the pastry is golden brown.
• Turn onto a plate while it’s still hot.
• You can also serve it with whipped cream.