How to Make It
Preheat oven to 400°F. Shape piecrust into a ball; divide ball into 8 equal portions. Roll each portion into a 4-inch circle on a lightly floured surface. (Cover dough circles with a damp towel to prevent drying.) Stir together peaches, brown sugar, butter, and cinnamon in a medium bowl.
Spoon about 1 tablespoon peach mixture onto each dough circle, leaving a 1/4-inch border. Moisten dough edges with water; fold circles in half to form half-moons. Crimp edges with a fork to seal; cut slits in top of pies, and place on a parchment paper–lined baking sheet.
Bake at 400°F until golden brown, about 14 minutes. Remove and cool 10 minutes before serving.