Put flour, sugar and salt in a large bowl and mix together.
Cut in the butter into the flour until it becomes crumble like.
Sprinkle the water and bring the crust together. It it is too wet, add more water. If it is to crumbly, add water little by little.
Shape into a disc. Wrap with plastic wrap and put in the fridge for 1 hour.
Remove the disc from the fridge about 10 minutes before you are ready to bake. Preheat the oven to 425 degrees F.
Roll out on the lightly floured surface. Cut using the cookie cutter. Prepare 2 parchment-lined baking sheet.
Brush the outside of the bottom crust with egg wash. Put a thin layer of Nutella in the center of the crust. Add a little bit of the diced strawberries on top.
Put the top crust and crimp the edges with a fork. Brush the top crust with egg wash and sprinkle with sugar.
Put on top of the baking sheet and bake for 12-13 minutes. You can sprinkle a little bit of sugar when done.