Duck A L’Orange – Simmer + Sauce

Ingredients

• For the Duck :
• 4-5 duck breasts with skin (I use D'Artagnan)
• kosher salt
• freshly ground black pepper
• For the Duck Sauce :
• 1 tablespoon vegetable oil
• 1 small yellow onion, roughly chopped
• 2 small carrots, peeled and roughly chopped
• 2 celery stalks, roughly chopped
• 1 leek, white and pale green parts only, roughly shopped
• 2 garlic cloves smashed
• 2 bay leaves
• 3 tablespoons all-purpose flour
• 2 tablespoons tomato paste
• 1 quart good quality chicken stock
• 1 cup dry white wine
• 3 springs fresh thyme, plus more for garnish
• 2 fresh sprigs marjoram
• 4 naval oranges, divided
• 1/3 cup sugar
• 1/3 cup apple cider vinegar
• 2 teaspoons Grand Marnier
• 1 tablespoon cold unsalted butter
• Fresh chives, finely chopped (for garnish)