Prepare the dough: In a mixing bowl, combine the flour and salt. Add the cubed butter and mix until the mixture resembles coarse crumbs. Slowly add water, one tablespoon at a time, until the dough forms. Be careful not to overwork the dough. Wrap it in plastic and refrigerate for about 30 minutes.
Roll out the dough: On a floured surface, roll out the dough to about 1/8 inch thickness. Use a round cutter or a cup to cut dough into circles, about 4-5 inches in diameter.
Add filling: Spoon a generous amount of your chosen fruit filling onto the center of each dough circle. Be careful not to overfill.
Seal the pies: Fold the dough over the filling to create a half-moon shape. Press the edges together to seal, using a fork to crimp the edges and ensure a tight seal.
Fry the pies: Heat oil in a frying pan over medium heat (about 350°F or 175°C). Carefully place the pies in the hot oil, frying them in batches for about 2-3 minutes per side, or until golden brown and crispy. Remove from oil and drain on paper towels.
Serve: Sprinkle with sugar, if desired, and serve warm. Enjoy your homemade Amish fried pies!