Roasted Chicken with Onions, Potatoes, and Gravy

Ingredients

• 0.8 teaspoon pepper black divided freshly ground
• 2 tablespoons butter melted
• 1  celery stalk cut into 2-inch pieces
• 14 ounce less-sodium chicken broth fat-free divided canned
• 0.3 cup flour all-purpose
• 1  optional: lemon quartered
• 4  oregano sprigs 
• 2 pounds potatoes red quartered
• 4 pound roasting chickens 
• 1 teaspoon salt divided
• 2 pounds onions yellow peeled cut into 8 wedges

Equipment

• bowl
• frying pan
• sauce pan
• oven
• whisk
• kitchen thermometer
• ziploc bags
• broiler pan

Directions

1. Preheat oven to 42
2. Remove and discard giblets and neck from chicken. Rinse chicken with cold water; pat dry. Trim excess fat. Starting at neck cavity, loosen skin from breast and drumsticks by inserting fingers, gently pushing between skin and meat.
3. Combine 1/2 teaspoon salt and 1/2 teaspoon pepper; rub under loosened skin and over breast and drumsticks.
4. Place oregano, quartered lemon, and celery into body cavity. Lift wing tips up and over back; tuck under chicken. Tie legs together with string.
5. Place chicken, breast side up, on the rack of a broiler pan coated with cooking spray.
6. Combine remaining 1/2 teaspoon salt, remaining 1/4 teaspoon pepper, butter, onions, and potatoes in a large bowl; toss well to coat. Arrange onion mixture around chicken on rack.
7. Place rack in pan.
8. Bake at 425 for 20 minutes. Reduce oven temperature to 325 (do not remove pan from oven); bake an additional 1 hour and 15 minutes or until onions and potatoes are tender and a thermometer inserted into meaty part of chicken thigh registers 18
9. Set chicken, onions, and potatoes aside; cover and keep warm.
10. Place a zip-top plastic bag inside a 2-cup glass measure.
11. Pour pan drippings into bag; let stand 10 minutes (fat will rise to the top). Seal bag; carefully snip off 1 bottom corner of bag.
12. Drain drippings into a small saucepan, stopping before fat layer reaches opening; discard fat.
13. Combine flour and 1/2 cup broth in a small bowl, stirring with a whisk.
14. Add flour mixture and remaining broth to saucepan. Bring to a boil over medium-high heat. Reduce heat to medium; cook 5 minutes or until gravy thickens, stirring frequently with a whisk.
15. Serve gravy with chicken and onion mixture.
16. Garnish with lemon wedges and oregano sprigs, if desired.