Prepare the balsamic orange glaze by combining the orange juice and balsamic vinegar in a saucepan.
Cook the glaze over medium heat, stirring occasionally, until it has reduced by half and thickened.
Remove the saucepan from the heat and whisk in the cold butter until it is fully incorporated and the glaze is smooth.
Season the glaze with rosemary, salt, and pepper to taste.
Serve the pork chops with the balsamic orange glaze.
