Crisp-Skin Roasted Chicken with Truffle Butter | Williams Sonoma

Ingredients

• 1 black or white truffle (about 1/2 oz.) 
• 6 Tbs. (3/4 stick) unsalted butter, at room temperature  
• 1 chicken, about 4 lb. 
• Canola oil as needed 
• 2 tsp. kosher salt, plus more, to taste  
• 1/2 tsp. freshly ground pepper, plus more, to taste 
• 1 small yellow onion, cut into 2-inch pieces 
• 1 small carrot, cut into 2-inch pieces 
• 1 small celery stalk, cut into 2-inch pieces 
• 1 cup low-sodium chicken broth or stock