Stove-Top Pressure Cooker Directions:
Using a 4- to 6-quart stove-top pressure cooker, prepare as directed through Step 2, cooking the chicken and onion over medium-high heat. Cover with lid and lock securely. Over high heat, bring cooker up to high (12 to 15 pounds) pressure. Reduce heat just enough to maintain steady pressure. Cook 20 minutes. Remove from heat. Allow pressure to release naturally for 10 minutes before quick-releasing the remaining pressure. Unlock and remove lid. If desired, serve with sour cream.