In a large saucepan, combine the vinegar, cider and brown sugar.
Cook over high heat until bubbly, stir the first 30 seconds to dissolve sugar.
Turn down heat to medium and continue to cook for 15 minutes. In a small skillet, cook the diced bacon over medium heat until crisp. Drain bacon. Add bacon, apples and orange juice to the vinegar mixture.
Bring back to a boil and cook for 30 minutes more. Serve warm over waffles or pancakes, or scones.