Herb Roasted Chicken

Ingredients

• 1 (5 lb.) Sanderson Farms® Whole Frying Chicken
• 1/2 cup (1 stick) unsalted butter, at room temperature
• 1 Tablespoon chopped fresh rosemary
• 1 Tablespoon chopped fresh flat leaf parsley
• 1 teaspoon chopped fresh thyme
• 2 cloves garlic, chopped fine
• 1 1/2 teaspoon salt, divided
• 1 teaspoon ground black pepper, divided
• 1 piece (24-inch) of kitchen twine
• 2 medium onions, sliced into 1" thick discs
• Vegetable spray