1. Preheat your oven to 400°F (200°C), making sure to use the convection setting if you have it available.

2. In a large mixing bowl, combine 250g (2 3/4 cups) of flour, 6g (1 teaspoon) of salt, and 115g (1/2 cup) of cold butter. Use a pastry blender or your fingertips to work the butter into the flour until it resembles coarse crumbs. Gradually add 60ml (1/4 cup) of cold water, mixing until a dough forms.

3. Divide the dough into 12 equal pieces. Roll out each piece into a thin circle, about 3mm (1/8 inch) thick. Place a circle into each muffin cup, pressing it into the corners and up the sides of the cup. Trim any excess dough from the top.

4. In a separate bowl, whisk together 120ml (1/2 cup) of milk, 1 egg, 115g (1/2 cup) of crumbled feta cheese, 15g (1 tablespoon) of chopped parsley, 15g (1 tablespoon) of chopped dill, 3g (1/2 teaspoon) of salt, and 1.5g (1/4 teaspoon) of pepper. Add 115g (1/2 cup) of cooked shrimp and mix until well combined.

5. Divide the shrimp mixture evenly among the pastry cups.

6. Bake in the preheated oven for 17-20 minutes, or until the pastry is golden brown. Serve warm.