Add flour and salt in a large bowl and mix until incorporated.
Using a pastry blender, mix in the butter until you have a coarse sand like texture. Then pour in the water and form the dough into a ball. Cover with plastic wrap and store in the refrigerator to rest for 30 minutes.
To Make the Hand Pies
Preheat the oven to 400 degrees F.
Line two sheet pans with parchment paper. Roll out half of the dough until its about 1/4 in. thick. Then stamp out circles in the dough. You should get 20 or close to 20 circles.
Fill each round with 1 tsp of peanut butter and 1 tbsp of jam.
Roll out the rest of the dough and stamp 20 more round for topping. You can also cut strips to create a lattice print on top of the pie.
Using egg wash, coat the edges of the peanut butter and jelly topped pie crust dough. Top with another piece of dough and seal the edges. Using a fork press around the edges to seal.
Repeat with the rest of the dough and filling.
Brush the tops of the hand pies with egg wash, then sprinkle generously with turbinado or sanding sugar. Cut a small slash or x on the tops of each for air to escape when it bakes.
Bake in the oven until golden brown, about 20-25 minutes.