Whisk together white wine vinegar, mayonnaise, ginger, cumin and salt. Fold in apples, cabbage and jalapeno (if using). Cover and refrigerate for 30 minutes.
Heat just enough oil to lightly coat the bottom of a skillet over medium heat. Fry tortillas until softened, about 30 seconds per side. Transfer to a paper towel lined plate.
To make a taco: spoon pork on to a tortilla, top with slaw, sprinkle with cilantro and serve.