Roy Ip's Vinegar Chicken · Faith Middleton's Food Schmooze

Ingredients

• 5 pounds chicken thighs (with skin and bones)
• 1/2 cup whole garlic cloves (peeled)
• 1 red bell pepper (sliced thin)
• 1 yellow bell pepper (sliced thin)
• 4 celery stalks (diced)
• 1 whole white onion (diced)
• 1-1/2 teaspoons fresh thyme
• 3 pieces bay leaf
• 1 tablespoon herbs de provences
• 1 4 ounce can tomato paste
• 1 cup sherry vinegar
• 3 cups chicken stock (low sodium)
• 2 tablespoons salt
• 1/4 cup sugar
• 1-1/2 teaspoons ground black pepper
• 6 tablespoons butter (unsalted )
• 1/4 cup corn oil