Preheat the oven to 325°F.

Slice the pork belly into 1-inch-thick slices.

In a medium bowl, combine water, red wine vinegar, sugar, soy sauce, ginger, chiles, peppercorns, star anise, and garlic.

Place pork belly slices in a cake pan and pour marinade over them.

Cover with aluminum foil and cook in the oven for 1 hour.

Remove the foil and raise the oven temperature to 350°F.

Cook for about another 40 minutes, stirring every 8 to 10 minutes.

Continue to cook and stir until the pork has a reddish color.

Remove the pork belly and place them into hot dog buns.

Garnish with hoisin and chile sauce, scallions, and cilantro.

Serve immediately.