Braised Pork Shoulder with Onions

Ingredients

• • 1 boneless pork shoulder, about 4 lbs (1.8 kg), not tied
  • 1/3 cup (75 ml) olive oil
  • 4 large Spanish onions, diced
  • 2 tablespoons (30 ml) unbleached all-purpose flour
  • 3 cups (750 ml) white wine
  • 3 cups (750 ml) chicken broth
  • 1/4 cup (60 ml) Dijon mustard
  • 1/4 cup (60 ml) whole-grain mustard
  • Salt and pepper