On a floured surface, cut the dough log into 8 discs. Roll them out to a thickness of about 3 mm (1/8 inch), making discs about 15 cm (6 inches) across. Spoon about 22.5 ml (1 1/2 tablespoons) of filling onto the middle of each disc and top with a peach half, cut side down. Brush the circumference with milk. Fold the dough toward the centre, partially covering the peaches and crimping to make folds.